81960111

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{31511}}^1$

素因数の和:31551

約数の個数: 18

約数和(自身を含む): 125764392

約数和(自身を除く): 43804281

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 31511, 94533, 283599, 535687, 1607061, 4821183, 9106679, 27320037, 81960111]

約数ペア:

[(1, 81960111), (3, 27320037), (9, 9106679), (17, 4821183), (51, 1607061), (153, 535687), (289, 283599), (867, 94533), (2601, 31511)]