19018953

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 28916160

約数和(自身を除く): 9897207

約数列:

[1, 3, 9, 23, 69, 139, 207, 417, 661, 1251, 1983, 3197, 5949, 9591, 15203, 28773, 45609, 91879, 136827, 275637, 826911, 2113217, 6339651, 19018953]

約数ペア:

[(1, 19018953), (3, 6339651), (9, 2113217), (23, 826911), (69, 275637), (139, 136827), (207, 91879), (417, 45609), (661, 28773), (1251, 15203), (1983, 9591), (3197, 5949)]