18240579

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{937}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 31216640

約数和(自身を除く): 12976061

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 937, 2163, 2781, 2811, 6489, 6559, 8433, 19467, 19677, 25299, 59031, 96511, 177093, 289533, 675577, 868599, 2026731, 2605797, 6080193, 18240579]

約数ペア:

[(1, 18240579), (3, 6080193), (7, 2605797), (9, 2026731), (21, 868599), (27, 675577), (63, 289533), (103, 177093), (189, 96511), (309, 59031), (721, 25299), (927, 19677), (937, 19467), (2163, 8433), (2781, 6559), (2811, 6489)]