21135650

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2837}}^1$

素因数の和:2998

約数の個数: 24

約数和(自身を含む): 39590100

約数和(自身を除く): 18454450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2837, 3725, 5674, 7450, 14185, 28370, 70925, 141850, 422713, 845426, 2113565, 4227130, 10567825, 21135650]

約数ペア:

[(1, 21135650), (2, 10567825), (5, 4227130), (10, 2113565), (25, 845426), (50, 422713), (149, 141850), (298, 70925), (745, 28370), (1490, 14185), (2837, 7450), (3725, 5674)]