21761460

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 240

約数和(自身を含む): 82938240

約数和(自身を除く): 61176780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 81, 84, 90, 95, 101, 105, 108, 114, 126, 133, 135, 140, 162, 171, 180, 189, 190, 202, 210, 228, 252, 266, 270, 285, 303, 315, 324, 342, 378, 380, 399, 404, 405, 420, 505, 513, 532, 540, 567, 570, 606, 630, 665, 684, 707, 756, 798, 810, 855, 909, 945, 1010, 1026, 1134, 1140, 1197, 1212, 1260, 1330, 1414, 1515, 1539, 1596, 1620, 1710, 1818, 1890, 1919, 1995, 2020, 2052, 2121, 2268, 2394, 2565, 2660, 2727, 2828, 2835, 3030, 3078, 3420, 3535, 3591, 3636, 3780, 3838, 3990, 4242, 4545, 4788, 5130, 5454, 5670, 5757, 5985, 6060, 6156, 6363, 7070, 7182, 7676, 7695, 7980, 8181, 8484, 9090, 9595, 10260, 10605, 10773, 10908, 11340, 11514, 11970, 12726, 13433, 13635, 14140, 14364, 15390, 16362, 17271, 17955, 18180, 19089, 19190, 21210, 21546, 23028, 23940, 25452, 26866, 27270, 28785, 30780, 31815, 32724, 34542, 35910, 38178, 38380, 40299, 40905, 42420, 43092, 51813, 53732, 53865, 54540, 57267, 57570, 63630, 67165, 69084, 71820, 76356, 80598, 81810, 86355, 95445, 103626, 107730, 114534, 115140, 120897, 127260, 134330, 155439, 161196, 163620, 172710, 190890, 201495, 207252, 215460, 229068, 241794, 259065, 268660, 286335, 310878, 345420, 362691, 381780, 402990, 483588, 518130, 572670, 604485, 621756, 725382, 777195, 805980, 1036260, 1088073, 1145340, 1208970, 1450764, 1554390, 1813455, 2176146, 2417940, 3108780, 3626910, 4352292, 5440365, 7253820, 10880730, 21761460]

約数ペア:

[(1, 21761460), (2, 10880730), (3, 7253820), (4, 5440365), (5, 4352292), (6, 3626910), (7, 3108780), (9, 2417940), (10, 2176146), (12, 1813455), (14, 1554390), (15, 1450764), (18, 1208970), (19, 1145340), (20, 1088073), (21, 1036260), (27, 805980), (28, 777195), (30, 725382), (35, 621756), (36, 604485), (38, 572670), (42, 518130), (45, 483588), (54, 402990), (57, 381780), (60, 362691), (63, 345420), (70, 310878), (76, 286335), (81, 268660), (84, 259065), (90, 241794), (95, 229068), (101, 215460), (105, 207252), (108, 201495), (114, 190890), (126, 172710), (133, 163620), (135, 161196), (140, 155439), (162, 134330), (171, 127260), (180, 120897), (189, 115140), (190, 114534), (202, 107730), (210, 103626), (228, 95445), (252, 86355), (266, 81810), (270, 80598), (285, 76356), (303, 71820), (315, 69084), (324, 67165), (342, 63630), (378, 57570), (380, 57267), (399, 54540), (404, 53865), (405, 53732), (420, 51813), (505, 43092), (513, 42420), (532, 40905), (540, 40299), (567, 38380), (570, 38178), (606, 35910), (630, 34542), (665, 32724), (684, 31815), (707, 30780), (756, 28785), (798, 27270), (810, 26866), (855, 25452), (909, 23940), (945, 23028), (1010, 21546), (1026, 21210), (1134, 19190), (1140, 19089), (1197, 18180), (1212, 17955), (1260, 17271), (1330, 16362), (1414, 15390), (1515, 14364), (1539, 14140), (1596, 13635), (1620, 13433), (1710, 12726), (1818, 11970), (1890, 11514), (1919, 11340), (1995, 10908), (2020, 10773), (2052, 10605), (2121, 10260), (2268, 9595), (2394, 9090), (2565, 8484), (2660, 8181), (2727, 7980), (2828, 7695), (2835, 7676), (3030, 7182), (3078, 7070), (3420, 6363), (3535, 6156), (3591, 6060), (3636, 5985), (3780, 5757), (3838, 5670), (3990, 5454), (4242, 5130), (4545, 4788)]