21996660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:733

約数の個数: 96

約数和(自身を含む): 71350272

約数和(自身を除く): 49353612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 83, 84, 105, 140, 166, 210, 249, 332, 415, 420, 498, 581, 631, 830, 996, 1162, 1245, 1262, 1660, 1743, 1893, 2324, 2490, 2524, 2905, 3155, 3486, 3786, 4417, 4980, 5810, 6310, 6972, 7572, 8715, 8834, 9465, 11620, 12620, 13251, 17430, 17668, 18930, 22085, 26502, 34860, 37860, 44170, 52373, 53004, 66255, 88340, 104746, 132510, 157119, 209492, 261865, 265020, 314238, 366611, 523730, 628476, 733222, 785595, 1047460, 1099833, 1466444, 1571190, 1833055, 2199666, 3142380, 3666110, 4399332, 5499165, 7332220, 10998330, 21996660]

約数ペア:

[(1, 21996660), (2, 10998330), (3, 7332220), (4, 5499165), (5, 4399332), (6, 3666110), (7, 3142380), (10, 2199666), (12, 1833055), (14, 1571190), (15, 1466444), (20, 1099833), (21, 1047460), (28, 785595), (30, 733222), (35, 628476), (42, 523730), (60, 366611), (70, 314238), (83, 265020), (84, 261865), (105, 209492), (140, 157119), (166, 132510), (210, 104746), (249, 88340), (332, 66255), (415, 53004), (420, 52373), (498, 44170), (581, 37860), (631, 34860), (830, 26502), (996, 22085), (1162, 18930), (1245, 17668), (1262, 17430), (1660, 13251), (1743, 12620), (1893, 11620), (2324, 9465), (2490, 8834), (2524, 8715), (2905, 7572), (3155, 6972), (3486, 6310), (3786, 5810), (4417, 4980)]