21269410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68611}}^1$

素因数の和:68649

約数の個数: 16

約数和(自身を含む): 39520512

約数和(自身を除く): 18251102

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68611, 137222, 343055, 686110, 2126941, 4253882, 10634705, 21269410]

約数ペア:

[(1, 21269410), (2, 10634705), (5, 4253882), (10, 2126941), (31, 686110), (62, 343055), (155, 137222), (310, 68611)]