20121665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9209}}^1$

素因数の和:9256

約数の個数: 16

約数和(自身を含む): 26524800

約数和(自身を除く): 6403135

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 9209, 46045, 174971, 211807, 874855, 1059035, 4024333, 20121665]

約数ペア:

[(1, 20121665), (5, 4024333), (19, 1059035), (23, 874855), (95, 211807), (115, 174971), (437, 46045), (2185, 9209)]