253253

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:65

約数の個数: 24

約数和(自身を含む): 357504

約数和(自身を除く): 104251

約数列:

[1, 7, 11, 13, 23, 77, 91, 121, 143, 161, 253, 299, 847, 1001, 1573, 1771, 2093, 2783, 3289, 11011, 19481, 23023, 36179, 253253]

約数ペア:

[(1, 253253), (7, 36179), (11, 23023), (13, 19481), (23, 11011), (77, 3289), (91, 2783), (121, 2093), (143, 1771), (161, 1573), (253, 1001), (299, 847)]