251115501

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{19571}}^1$

素因数の和:19641

約数の個数: 32

約数和(自身を含む): 420876288

約数和(自身を除く): 169760787

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 4277, 12831, 19571, 58713, 136997, 254423, 410991, 763269, 919837, 1780961, 2759511, 5342883, 6438859, 11957881, 19316577, 35873643, 83705167, 251115501]

約数ペア:

[(1, 251115501), (3, 83705167), (7, 35873643), (13, 19316577), (21, 11957881), (39, 6438859), (47, 5342883), (91, 2759511), (141, 1780961), (273, 919837), (329, 763269), (611, 410991), (987, 254423), (1833, 136997), (4277, 58713), (12831, 19571)]