20105195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2113}}^1$

素因数の和:2302

約数の個数: 16

約数和(自身を含む): 26484192

約数和(自身を除く): 6378997

約数列:

[1, 5, 11, 55, 173, 865, 1903, 2113, 9515, 10565, 23243, 116215, 365549, 1827745, 4021039, 20105195]

約数ペア:

[(1, 20105195), (5, 4021039), (11, 1827745), (55, 365549), (173, 116215), (865, 23243), (1903, 10565), (2113, 9515)]