21421803

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13397}}^1$

素因数の和:13454

約数の個数: 16

約数和(自身を含む): 31512096

約数和(自身を除く): 10090293

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13397, 40191, 174161, 522483, 549277, 1647831, 7140601, 21421803]

約数ペア:

[(1, 21421803), (3, 7140601), (13, 1647831), (39, 549277), (41, 522483), (123, 174161), (533, 40191), (1599, 13397)]