21156159

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{809}}^1$

素因数の和:1214

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 8392641

約数列:

[1, 3, 23, 69, 379, 809, 1137, 2427, 8717, 18607, 26151, 55821, 306611, 919833, 7052053, 21156159]

約数ペア:

[(1, 21156159), (3, 7052053), (23, 919833), (69, 306611), (379, 55821), (809, 26151), (1137, 18607), (2427, 8717)]