21672110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7499}}^1$

素因数の和:7540

約数の個数: 24

約数和(自身を含む): 41445000

約数和(自身を除く): 19772890

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7499, 14998, 37495, 74990, 127483, 254966, 637415, 1274830, 2167211, 4334422, 10836055, 21672110]

約数ペア:

[(1, 21672110), (2, 10836055), (5, 4334422), (10, 2167211), (17, 1274830), (34, 637415), (85, 254966), (170, 127483), (289, 74990), (578, 37495), (1445, 14998), (2890, 7499)]