20524792

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 39528720

約数和(自身を除く): 19003928

約数列:

[1, 2, 4, 8, 61, 122, 137, 244, 274, 307, 488, 548, 614, 1096, 1228, 2456, 8357, 16714, 18727, 33428, 37454, 42059, 66856, 74908, 84118, 149816, 168236, 336472, 2565599, 5131198, 10262396, 20524792]

約数ペア:

[(1, 20524792), (2, 10262396), (4, 5131198), (8, 2565599), (61, 336472), (122, 168236), (137, 149816), (244, 84118), (274, 74908), (307, 66856), (488, 42059), (548, 37454), (614, 33428), (1096, 18727), (1228, 16714), (2456, 8357)]