21122101

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21101}}^1$

素因数の和:21132

約数の個数: 16

約数和(自身を含む): 28361088

約数和(自身を除く): 7238987

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21101, 147707, 232111, 274313, 1624777, 1920191, 3017443, 21122101]

約数ペア:

[(1, 21122101), (7, 3017443), (11, 1920191), (13, 1624777), (77, 274313), (91, 232111), (143, 147707), (1001, 21101)]