21575255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8971}}^1$

素因数の和:9026

約数の個数: 16

約数和(自身を含む): 28638624

約数和(自身を除く): 7063369

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8971, 44855, 116623, 331927, 583115, 1659635, 4315051, 21575255]

約数ペア:

[(1, 21575255), (5, 4315051), (13, 1659635), (37, 583115), (65, 331927), (185, 116623), (481, 44855), (2405, 8971)]