28189564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{8887}}^1$

素因数の和:8965

約数の個数: 24

約数和(自身を含む): 54003488

約数和(自身を除く): 25813924

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 8887, 17774, 35548, 115531, 231062, 462124, 542107, 1084214, 2168428, 7047391, 14094782, 28189564]

約数ペア:

[(1, 28189564), (2, 14094782), (4, 7047391), (13, 2168428), (26, 1084214), (52, 542107), (61, 462124), (122, 231062), (244, 115531), (793, 35548), (1586, 17774), (3172, 8887)]