21521216

素因数分解:

$2^6\times {\mathrm{163}}^1\times {\mathrm{2063}}^1$

素因数の和:2238

約数の個数: 28

約数和(自身を含む): 42988992

約数和(自身を除く): 21467776

約数列:

[1, 2, 4, 8, 16, 32, 64, 163, 326, 652, 1304, 2063, 2608, 4126, 5216, 8252, 10432, 16504, 33008, 66016, 132032, 336269, 672538, 1345076, 2690152, 5380304, 10760608, 21521216]

約数ペア:

[(1, 21521216), (2, 10760608), (4, 5380304), (8, 2690152), (16, 1345076), (32, 672538), (64, 336269), (163, 132032), (326, 66016), (652, 33008), (1304, 16504), (2063, 10432), (2608, 8252), (4126, 5216)]