18572816

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:411

約数の個数: 40

約数和(自身を含む): 37389720

約数和(自身を除く): 18816904

約数列:

[1, 2, 4, 8, 16, 37, 74, 137, 148, 229, 274, 296, 458, 548, 592, 916, 1096, 1832, 2192, 3664, 5069, 8473, 10138, 16946, 20276, 31373, 33892, 40552, 62746, 67784, 81104, 125492, 135568, 250984, 501968, 1160801, 2321602, 4643204, 9286408, 18572816]

約数ペア:

[(1, 18572816), (2, 9286408), (4, 4643204), (8, 2321602), (16, 1160801), (37, 501968), (74, 250984), (137, 135568), (148, 125492), (229, 81104), (274, 67784), (296, 62746), (458, 40552), (548, 33892), (592, 31373), (916, 20276), (1096, 16946), (1832, 10138), (2192, 8473), (3664, 5069)]