17901121

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 21755304

約数和(自身を除く): 3854183

約数列:

[1, 7, 49, 53, 61, 113, 371, 427, 791, 2597, 2989, 3233, 5537, 5989, 6893, 22631, 41923, 48251, 158417, 293461, 337757, 365329, 2557303, 17901121]

約数ペア:

[(1, 17901121), (7, 2557303), (49, 365329), (53, 337757), (61, 293461), (113, 158417), (371, 48251), (427, 41923), (791, 22631), (2597, 6893), (2989, 5989), (3233, 5537)]