21880859

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21859}}^1$

素因数の和:21890

約数の個数: 16

約数和(自身を含む): 29379840

約数和(自身を除く): 7498981

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21859, 153013, 240449, 284167, 1683143, 1989169, 3125837, 21880859]

約数ペア:

[(1, 21880859), (7, 3125837), (11, 1989169), (13, 1683143), (77, 284167), (91, 240449), (143, 153013), (1001, 21859)]