21207620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151483}}^1$

素因数の和:151499

約数の個数: 24

約数和(自身を含む): 50898624

約数和(自身を除く): 29691004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151483, 302966, 605932, 757415, 1060381, 1514830, 2120762, 3029660, 4241524, 5301905, 10603810, 21207620]

約数ペア:

[(1, 21207620), (2, 10603810), (4, 5301905), (5, 4241524), (7, 3029660), (10, 2120762), (14, 1514830), (20, 1060381), (28, 757415), (35, 605932), (70, 302966), (140, 151483)]