21041190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5437}}^1$

素因数の和:5493

約数の個数: 48

約数和(自身を含む): 55989648

約数和(自身を除く): 34948458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5437, 10874, 16311, 27185, 32622, 48933, 54370, 81555, 97866, 163110, 233791, 244665, 467582, 489330, 701373, 1168955, 1402746, 2104119, 2337910, 3506865, 4208238, 7013730, 10520595, 21041190]

約数ペア:

[(1, 21041190), (2, 10520595), (3, 7013730), (5, 4208238), (6, 3506865), (9, 2337910), (10, 2104119), (15, 1402746), (18, 1168955), (30, 701373), (43, 489330), (45, 467582), (86, 244665), (90, 233791), (129, 163110), (215, 97866), (258, 81555), (387, 54370), (430, 48933), (645, 32622), (774, 27185), (1290, 16311), (1935, 10874), (3870, 5437)]