251199039

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{131449}}^1$

素因数の和:131479

約数の個数: 24

約数和(自身を含む): 419588400

約数和(自身を除く): 168389361

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 131449, 394347, 920143, 1708837, 2760429, 5126511, 6441001, 11961859, 19323003, 35885577, 83733013, 251199039]

約数ペア:

[(1, 251199039), (3, 83733013), (7, 35885577), (13, 19323003), (21, 11961859), (39, 6441001), (49, 5126511), (91, 2760429), (147, 1708837), (273, 920143), (637, 394347), (1911, 131449)]