21094090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51449}}^1$

素因数の和:51497

約数の個数: 16

約数和(自身を含む): 38896200

約数和(自身を除く): 17802110

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51449, 102898, 257245, 514490, 2109409, 4218818, 10547045, 21094090]

約数ペア:

[(1, 21094090), (2, 10547045), (5, 4218818), (10, 2109409), (41, 514490), (82, 257245), (205, 102898), (410, 51449)]