21000565460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{349}}^1$

素因数の和:706

約数の個数: 192

約数和(自身を含む): 54207014400

約数和(自身を除く): 33206448940

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 131, 140, 170, 193, 238, 262, 340, 349, 386, 476, 524, 595, 655, 698, 772, 917, 965, 1190, 1310, 1351, 1396, 1745, 1834, 1930, 2227, 2380, 2443, 2620, 2702, 3281, 3490, 3668, 3860, 4454, 4585, 4886, 5404, 5933, 6562, 6755, 6980, 8908, 9170, 9772, 11135, 11866, 12215, 13124, 13510, 15589, 16405, 18340, 22270, 22967, 23732, 24430, 25283, 27020, 29665, 31178, 32810, 41531, 44540, 45719, 45934, 48860, 50566, 59330, 62356, 65620, 67357, 77945, 83062, 91438, 91868, 101132, 114835, 118660, 126415, 134714, 155890, 166124, 176981, 182876, 207655, 228595, 229670, 252830, 269428, 311780, 320033, 336785, 353962, 415310, 429811, 457190, 459340, 471499, 505660, 640066, 673570, 707924, 777223, 830620, 859622, 884905, 914380, 942998, 1145069, 1280132, 1347140, 1554446, 1600165, 1719244, 1769810, 1885996, 2149055, 2290138, 2357495, 3008677, 3108892, 3200330, 3539620, 3886115, 4298110, 4580276, 4714990, 5440561, 5725345, 6017354, 6400660, 7772230, 8015483, 8596220, 8823767, 9429980, 10881122, 11450690, 12034708, 15043385, 15544460, 16030966, 17647534, 21762244, 22901380, 27202805, 30086770, 32061932, 35295068, 40077415, 44118835, 54405610, 60173540, 61766369, 80154830, 88237670, 108811220, 123532738, 150004039, 160309660, 176475340, 247065476, 300008078, 308831845, 600016156, 617663690, 750020195, 1050028273, 1235327380, 1500040390, 2100056546, 3000080780, 4200113092, 5250141365, 10500282730, 21000565460]

約数ペア:

[(1, 21000565460), (2, 10500282730), (4, 5250141365), (5, 4200113092), (7, 3000080780), (10, 2100056546), (14, 1500040390), (17, 1235327380), (20, 1050028273), (28, 750020195), (34, 617663690), (35, 600016156), (68, 308831845), (70, 300008078), (85, 247065476), (119, 176475340), (131, 160309660), (140, 150004039), (170, 123532738), (193, 108811220), (238, 88237670), (262, 80154830), (340, 61766369), (349, 60173540), (386, 54405610), (476, 44118835), (524, 40077415), (595, 35295068), (655, 32061932), (698, 30086770), (772, 27202805), (917, 22901380), (965, 21762244), (1190, 17647534), (1310, 16030966), (1351, 15544460), (1396, 15043385), (1745, 12034708), (1834, 11450690), (1930, 10881122), (2227, 9429980), (2380, 8823767), (2443, 8596220), (2620, 8015483), (2702, 7772230), (3281, 6400660), (3490, 6017354), (3668, 5725345), (3860, 5440561), (4454, 4714990), (4585, 4580276), (4886, 4298110), (5404, 3886115), (5933, 3539620), (6562, 3200330), (6755, 3108892), (6980, 3008677), (8908, 2357495), (9170, 2290138), (9772, 2149055), (11135, 1885996), (11866, 1769810), (12215, 1719244), (13124, 1600165), (13510, 1554446), (15589, 1347140), (16405, 1280132), (18340, 1145069), (22270, 942998), (22967, 914380), (23732, 884905), (24430, 859622), (25283, 830620), (27020, 777223), (29665, 707924), (31178, 673570), (32810, 640066), (41531, 505660), (44540, 471499), (45719, 459340), (45934, 457190), (48860, 429811), (50566, 415310), (59330, 353962), (62356, 336785), (65620, 320033), (67357, 311780), (77945, 269428), (83062, 252830), (91438, 229670), (91868, 228595), (101132, 207655), (114835, 182876), (118660, 176981), (126415, 166124), (134714, 155890)]