21000306595

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{909301}}^1$

素因数の和:909486

約数の個数: 16

約数和(自身を含む): 26187897600

約数和(自身を除く): 5187591005

約数列:

[1, 5, 31, 149, 155, 745, 4619, 23095, 909301, 4546505, 28188331, 135485849, 140941655, 677429245, 4200061319, 21000306595]

約数ペア:

[(1, 21000306595), (5, 4200061319), (31, 677429245), (149, 140941655), (155, 135485849), (745, 28188331), (4619, 4546505), (23095, 909301)]