42778281

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2207}}^1$

素因数の和:2301

約数の個数: 32

約数和(自身を含む): 71221248

約数和(自身を除く): 28442967

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1491, 2207, 2769, 6461, 6621, 15449, 19383, 28691, 46347, 86073, 156697, 200837, 470091, 602511, 1096879, 2037061, 3290637, 6111183, 14259427, 42778281]

約数ペア:

[(1, 42778281), (3, 14259427), (7, 6111183), (13, 3290637), (21, 2037061), (39, 1096879), (71, 602511), (91, 470091), (213, 200837), (273, 156697), (497, 86073), (923, 46347), (1491, 28691), (2207, 19383), (2769, 15449), (6461, 6621)]