20847355

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{4157}}^1$

素因数の和:4238

約数の個数: 16

約数和(自身を含む): 26943840

約数和(自身を除く): 6096485

約数列:

[1, 5, 17, 59, 85, 295, 1003, 4157, 5015, 20785, 70669, 245263, 353345, 1226315, 4169471, 20847355]

約数ペア:

[(1, 20847355), (5, 4169471), (17, 1226315), (59, 353345), (85, 245263), (295, 70669), (1003, 20785), (4157, 5015)]