19218004

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{28429}}^1$

素因数の和:28459

約数の個数: 18

約数和(自身を含む): 36418830

約数和(自身を除く): 17200826

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 28429, 56858, 113716, 369577, 739154, 1478308, 4804501, 9609002, 19218004]

約数ペア:

[(1, 19218004), (2, 9609002), (4, 4804501), (13, 1478308), (26, 739154), (52, 369577), (169, 113716), (338, 56858), (676, 28429)]