21491002

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{10463}}^1$

素因数の和:10557

約数の個数: 16

約数和(自身を含む): 35159040

約数和(自身を除く): 13668038

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 10463, 20926, 136019, 272038, 826577, 1653154, 10745501, 21491002]

約数ペア:

[(1, 21491002), (2, 10745501), (13, 1653154), (26, 826577), (79, 272038), (158, 136019), (1027, 20926), (2054, 10463)]