21260110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68581}}^1$

素因数の和:68619

約数の個数: 16

約数和(自身を含む): 39503232

約数和(自身を除く): 18243122

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68581, 137162, 342905, 685810, 2126011, 4252022, 10630055, 21260110]

約数ペア:

[(1, 21260110), (2, 10630055), (5, 4252022), (10, 2126011), (31, 685810), (62, 342905), (155, 137162), (310, 68581)]