21679686

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2357}}^1$

素因数の和:2445

約数の個数: 48

約数和(自身を含む): 54441504

約数和(自身を除く): 32761818

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 73, 126, 146, 219, 438, 511, 657, 1022, 1314, 1533, 2357, 3066, 4599, 4714, 7071, 9198, 14142, 16499, 21213, 32998, 42426, 49497, 98994, 148491, 172061, 296982, 344122, 516183, 1032366, 1204427, 1548549, 2408854, 3097098, 3613281, 7226562, 10839843, 21679686]

約数ペア:

[(1, 21679686), (2, 10839843), (3, 7226562), (6, 3613281), (7, 3097098), (9, 2408854), (14, 1548549), (18, 1204427), (21, 1032366), (42, 516183), (63, 344122), (73, 296982), (126, 172061), (146, 148491), (219, 98994), (438, 49497), (511, 42426), (657, 32998), (1022, 21213), (1314, 16499), (1533, 14142), (2357, 9198), (3066, 7071), (4599, 4714)]