20148309

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{31531}}^1$

素因数の和:31608

約数の個数: 12

約数和(自身を含む): 29513952

約数和(自身を除く): 9365643

約数列:

[1, 3, 9, 71, 213, 639, 31531, 94593, 283779, 2238701, 6716103, 20148309]

約数ペア:

[(1, 20148309), (3, 6716103), (9, 2238701), (71, 283779), (213, 94593), (639, 31531)]