18874071

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 28629120

約数和(自身を除く): 9755049

約数列:

[1, 3, 9, 31, 61, 93, 183, 279, 549, 1109, 1891, 3327, 5673, 9981, 17019, 34379, 67649, 103137, 202947, 309411, 608841, 2097119, 6291357, 18874071]

約数ペア:

[(1, 18874071), (3, 6291357), (9, 2097119), (31, 608841), (61, 309411), (93, 202947), (183, 103137), (279, 67649), (549, 34379), (1109, 17019), (1891, 9981), (3327, 5673)]