21473980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97609}}^1$

素因数の和:97629

約数の個数: 24

約数和(自身を含む): 49195440

約数和(自身を除く): 27721460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97609, 195218, 390436, 488045, 976090, 1073699, 1952180, 2147398, 4294796, 5368495, 10736990, 21473980]

約数ペア:

[(1, 21473980), (2, 10736990), (4, 5368495), (5, 4294796), (10, 2147398), (11, 1952180), (20, 1073699), (22, 976090), (44, 488045), (55, 390436), (110, 195218), (220, 97609)]