20897896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4153}}^1$

素因数の和:4213

約数の個数: 32

約数和(自身を含む): 42620040

約数和(自身を除く): 21722144

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4153, 5032, 8306, 16612, 33224, 70601, 141202, 153661, 282404, 307322, 564808, 614644, 1229288, 2612237, 5224474, 10448948, 20897896]

約数ペア:

[(1, 20897896), (2, 10448948), (4, 5224474), (8, 2612237), (17, 1229288), (34, 614644), (37, 564808), (68, 307322), (74, 282404), (136, 153661), (148, 141202), (296, 70601), (629, 33224), (1258, 16612), (2516, 8306), (4153, 5032)]