20105478

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{18311}}^1$

素因数の和:18380

約数の個数: 24

約数和(自身を含む): 44278416

約数和(自身を除く): 24172938

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 18311, 36622, 54933, 109866, 164799, 329598, 1116971, 2233942, 3350913, 6701826, 10052739, 20105478]

約数ペア:

[(1, 20105478), (2, 10052739), (3, 6701826), (6, 3350913), (9, 2233942), (18, 1116971), (61, 329598), (122, 164799), (183, 109866), (366, 54933), (549, 36622), (1098, 18311)]