20931081

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 29230080

約数和(自身を除く): 8298999

約数列:

[1, 3, 23, 69, 439, 691, 1317, 2073, 10097, 15893, 30291, 47679, 303349, 910047, 6977027, 20931081]

約数ペア:

[(1, 20931081), (3, 6977027), (23, 910047), (69, 303349), (439, 47679), (691, 30291), (1317, 15893), (2073, 10097)]