21130016

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{4051}}^1$

素因数の和:4224

約数の個数: 24

約数和(自身を含む): 41865264

約数和(自身を除く): 20735248

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 4051, 5216, 8102, 16204, 32408, 64816, 129632, 660313, 1320626, 2641252, 5282504, 10565008, 21130016]

約数ペア:

[(1, 21130016), (2, 10565008), (4, 5282504), (8, 2641252), (16, 1320626), (32, 660313), (163, 129632), (326, 64816), (652, 32408), (1304, 16204), (2608, 8102), (4051, 5216)]