21352683

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4723}}^1$

素因数の和:4874

約数の個数: 16

約数和(自身を含む): 31291776

約数和(自身を除く): 9939093

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4521, 4723, 14169, 51953, 155859, 647051, 1941153, 7117561, 21352683]

約数ペア:

[(1, 21352683), (3, 7117561), (11, 1941153), (33, 647051), (137, 155859), (411, 51953), (1507, 14169), (4521, 4723)]