20840432

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42017}}^1$

素因数の和:42056

約数の個数: 20

約数和(自身を含む): 41681856

約数和(自身を除く): 20841424

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42017, 84034, 168068, 336136, 672272, 1302527, 2605054, 5210108, 10420216, 20840432]

約数ペア:

[(1, 20840432), (2, 10420216), (4, 5210108), (8, 2605054), (16, 1302527), (31, 672272), (62, 336136), (124, 168068), (248, 84034), (496, 42017)]