161116209

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{12203}}^1$

素因数の和:12378

約数の個数: 20

約数和(自身を含む): 242176176

約数和(自身を除く): 81059967

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 4401, 12203, 13203, 36609, 109827, 329481, 988443, 1989089, 5967267, 17901801, 53705403, 161116209]

約数ペア:

[(1, 161116209), (3, 53705403), (9, 17901801), (27, 5967267), (81, 1989089), (163, 988443), (489, 329481), (1467, 109827), (4401, 36609), (12203, 13203)]