2991123

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 4530240

約数和(自身を除く): 1539117

約数列:

[1, 3, 9, 43, 59, 129, 131, 177, 387, 393, 531, 1179, 2537, 5633, 7611, 7729, 16899, 22833, 23187, 50697, 69561, 332347, 997041, 2991123]

約数ペア:

[(1, 2991123), (3, 997041), (9, 332347), (43, 69561), (59, 50697), (129, 23187), (131, 22833), (177, 16899), (387, 7729), (393, 7611), (531, 5633), (1179, 2537)]