19854995

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{919}}^1$

素因数の和:1102

約数の個数: 16

約数和(自身を含む): 24840000

約数和(自身を除く): 4985005

約数列:

[1, 5, 29, 145, 149, 745, 919, 4321, 4595, 21605, 26651, 133255, 136931, 684655, 3970999, 19854995]

約数ペア:

[(1, 19854995), (5, 3970999), (29, 684655), (145, 136931), (149, 133255), (745, 26651), (919, 21605), (4321, 4595)]