18918056

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 36688680

約数和(自身を除く): 17770624

約数列:

[1, 2, 4, 8, 41, 82, 137, 164, 274, 328, 421, 548, 842, 1096, 1684, 3368, 5617, 11234, 17261, 22468, 34522, 44936, 57677, 69044, 115354, 138088, 230708, 461416, 2364757, 4729514, 9459028, 18918056]

約数ペア:

[(1, 18918056), (2, 9459028), (4, 4729514), (8, 2364757), (41, 461416), (82, 230708), (137, 138088), (164, 115354), (274, 69044), (328, 57677), (421, 44936), (548, 34522), (842, 22468), (1096, 17261), (1684, 11234), (3368, 5617)]