21268491

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{1279}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 29736960

約数和(自身を除く): 8468469

約数列:

[1, 3, 23, 69, 241, 723, 1279, 3837, 5543, 16629, 29417, 88251, 308239, 924717, 7089497, 21268491]

約数ペア:

[(1, 21268491), (3, 7089497), (23, 924717), (69, 308239), (241, 88251), (723, 29417), (1279, 16629), (3837, 5543)]