21471359

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 27655488

約数和(自身を除く): 6184129

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 911, 1813, 3367, 6377, 11843, 23569, 33707, 44639, 82901, 235949, 438191, 580307, 1651643, 3067337, 21471359]

約数ペア:

[(1, 21471359), (7, 3067337), (13, 1651643), (37, 580307), (49, 438191), (91, 235949), (259, 82901), (481, 44639), (637, 33707), (911, 23569), (1813, 11843), (3367, 6377)]