20902370

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67427}}^1$

素因数の和:67465

約数の個数: 16

約数和(自身を含む): 38838528

約数和(自身を除く): 17936158

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67427, 134854, 337135, 674270, 2090237, 4180474, 10451185, 20902370]

約数ペア:

[(1, 20902370), (2, 10451185), (5, 4180474), (10, 2090237), (31, 674270), (62, 337135), (155, 134854), (310, 67427)]