21239782

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{751}}^1$

素因数の和:1011

約数の個数: 16

約数和(自身を含む): 32486400

約数和(自身を除く): 11246618

約数列:

[1, 2, 79, 158, 179, 358, 751, 1502, 14141, 28282, 59329, 118658, 134429, 268858, 10619891, 21239782]

約数ペア:

[(1, 21239782), (2, 10619891), (79, 268858), (158, 134429), (179, 118658), (358, 59329), (751, 28282), (1502, 14141)]