21221163

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{5737}}^1$

素因数の和:5883

約数の個数: 16

約数和(自身を含む): 31673760

約数和(自身を除く): 10452597

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 5737, 17211, 51633, 154899, 785969, 2357907, 7073721, 21221163]

約数ペア:

[(1, 21221163), (3, 7073721), (9, 2357907), (27, 785969), (137, 154899), (411, 51633), (1233, 17211), (3699, 5737)]