21653730

素因数分解:

$2^1\times 3^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 192

約数和(自身を含む): 71285760

約数和(自身を除く): 49632030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 67, 70, 81, 90, 95, 105, 114, 126, 133, 134, 135, 162, 171, 189, 190, 201, 210, 243, 266, 270, 285, 315, 335, 342, 378, 399, 402, 405, 469, 486, 513, 567, 570, 603, 630, 665, 670, 798, 810, 855, 938, 945, 1005, 1026, 1134, 1197, 1206, 1215, 1273, 1330, 1407, 1539, 1701, 1710, 1809, 1890, 1995, 2010, 2345, 2394, 2430, 2546, 2565, 2814, 2835, 3015, 3078, 3402, 3591, 3618, 3819, 3990, 4221, 4617, 4690, 5130, 5427, 5670, 5985, 6030, 6365, 7035, 7182, 7638, 7695, 8442, 8505, 8911, 9045, 9234, 10773, 10854, 11457, 11970, 12663, 12730, 14070, 15390, 16281, 17010, 17822, 17955, 18090, 19095, 21105, 21546, 22914, 23085, 25326, 26733, 27135, 32319, 32562, 34371, 35910, 37989, 38190, 42210, 44555, 46170, 53466, 53865, 54270, 57285, 63315, 64638, 68742, 75978, 80199, 81405, 89110, 103113, 107730, 113967, 114570, 126630, 133665, 160398, 161595, 162810, 171855, 189945, 206226, 227934, 240597, 267330, 309339, 323190, 343710, 379890, 400995, 481194, 515565, 569835, 618678, 721791, 801990, 1031130, 1139670, 1202985, 1443582, 1546695, 2165373, 2405970, 3093390, 3608955, 4330746, 7217910, 10826865, 21653730]

約数ペア:

[(1, 21653730), (2, 10826865), (3, 7217910), (5, 4330746), (6, 3608955), (7, 3093390), (9, 2405970), (10, 2165373), (14, 1546695), (15, 1443582), (18, 1202985), (19, 1139670), (21, 1031130), (27, 801990), (30, 721791), (35, 618678), (38, 569835), (42, 515565), (45, 481194), (54, 400995), (57, 379890), (63, 343710), (67, 323190), (70, 309339), (81, 267330), (90, 240597), (95, 227934), (105, 206226), (114, 189945), (126, 171855), (133, 162810), (134, 161595), (135, 160398), (162, 133665), (171, 126630), (189, 114570), (190, 113967), (201, 107730), (210, 103113), (243, 89110), (266, 81405), (270, 80199), (285, 75978), (315, 68742), (335, 64638), (342, 63315), (378, 57285), (399, 54270), (402, 53865), (405, 53466), (469, 46170), (486, 44555), (513, 42210), (567, 38190), (570, 37989), (603, 35910), (630, 34371), (665, 32562), (670, 32319), (798, 27135), (810, 26733), (855, 25326), (938, 23085), (945, 22914), (1005, 21546), (1026, 21105), (1134, 19095), (1197, 18090), (1206, 17955), (1215, 17822), (1273, 17010), (1330, 16281), (1407, 15390), (1539, 14070), (1701, 12730), (1710, 12663), (1809, 11970), (1890, 11457), (1995, 10854), (2010, 10773), (2345, 9234), (2394, 9045), (2430, 8911), (2546, 8505), (2565, 8442), (2814, 7695), (2835, 7638), (3015, 7182), (3078, 7035), (3402, 6365), (3591, 6030), (3618, 5985), (3819, 5670), (3990, 5427), (4221, 5130), (4617, 4690)]