21196856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3769}}^1$

素因数の和:3831

約数の個数: 32

約数和(自身を含む): 42978000

約数和(自身を除く): 21781144

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3769, 5624, 7538, 15076, 30152, 71611, 139453, 143222, 278906, 286444, 557812, 572888, 1115624, 2649607, 5299214, 10598428, 21196856]

約数ペア:

[(1, 21196856), (2, 10598428), (4, 5299214), (8, 2649607), (19, 1115624), (37, 572888), (38, 557812), (74, 286444), (76, 278906), (148, 143222), (152, 139453), (296, 71611), (703, 30152), (1406, 15076), (2812, 7538), (3769, 5624)]