21709431

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{5869}}^1$

素因数の和:6015

約数の個数: 16

約数和(自身を含む): 32402400

約数和(自身を除く): 10692969

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 5869, 17607, 52821, 158463, 804053, 2412159, 7236477, 21709431]

約数ペア:

[(1, 21709431), (3, 7236477), (9, 2412159), (27, 804053), (137, 158463), (411, 52821), (1233, 17607), (3699, 5869)]