20382237

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 30201600

約数和(自身を除く): 9819363

約数列:

[1, 3, 9, 79, 109, 237, 263, 327, 711, 789, 981, 2367, 8611, 20777, 25833, 28667, 62331, 77499, 86001, 186993, 258003, 2264693, 6794079, 20382237]

約数ペア:

[(1, 20382237), (3, 6794079), (9, 2264693), (79, 258003), (109, 186993), (237, 86001), (263, 77499), (327, 62331), (711, 28667), (789, 25833), (981, 20777), (2367, 8611)]