21107336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155201}}^1$

素因数の和:155224

約数の個数: 16

約数和(自身を含む): 41904540

約数和(自身を除く): 20797204

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155201, 310402, 620804, 1241608, 2638417, 5276834, 10553668, 21107336]

約数ペア:

[(1, 21107336), (2, 10553668), (4, 5276834), (8, 2638417), (17, 1241608), (34, 620804), (68, 310402), (136, 155201)]