21566285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 30572640

約数和(自身を除く): 9006355

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 673, 1105, 1885, 2465, 3365, 6409, 8749, 11441, 19517, 32045, 43745, 57205, 97585, 148733, 253721, 331789, 743665, 1268605, 1658945, 4313257, 21566285]

約数ペア:

[(1, 21566285), (5, 4313257), (13, 1658945), (17, 1268605), (29, 743665), (65, 331789), (85, 253721), (145, 148733), (221, 97585), (377, 57205), (493, 43745), (673, 32045), (1105, 19517), (1885, 11441), (2465, 8749), (3365, 6409)]