20869303

素因数分解:

$7^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 6548297

約数列:

[1, 7, 13, 23, 59, 91, 161, 169, 299, 413, 767, 1183, 1357, 2093, 2197, 3887, 5369, 9499, 9971, 15379, 17641, 27209, 50531, 69797, 123487, 129623, 229333, 353717, 907361, 1605331, 2981329, 20869303]

約数ペア:

[(1, 20869303), (7, 2981329), (13, 1605331), (23, 907361), (59, 353717), (91, 229333), (161, 129623), (169, 123487), (299, 69797), (413, 50531), (767, 27209), (1183, 17641), (1357, 15379), (2093, 9971), (2197, 9499), (3887, 5369)]