21811491

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{62141}}^1$

素因数の和:62163

約数の個数: 16

約数和(自身を含む): 34799520

約数和(自身を除く): 12988029

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 62141, 186423, 559269, 807833, 1677807, 2423499, 7270497, 21811491]

約数ペア:

[(1, 21811491), (3, 7270497), (9, 2423499), (13, 1677807), (27, 807833), (39, 559269), (117, 186423), (351, 62141)]