20021488

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29101}}^1$

素因数の和:29152

約数の個数: 20

約数和(自身を含む): 39695128

約数和(自身を除く): 19673640

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29101, 58202, 116404, 232808, 465616, 1251343, 2502686, 5005372, 10010744, 20021488]

約数ペア:

[(1, 20021488), (2, 10010744), (4, 5005372), (8, 2502686), (16, 1251343), (43, 465616), (86, 232808), (172, 116404), (344, 58202), (688, 29101)]