20989323

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{63031}}^1$

素因数の和:63074

約数の個数: 12

約数和(自身を含む): 31137808

約数和(自身を除く): 10148485

約数列:

[1, 3, 9, 37, 111, 333, 63031, 189093, 567279, 2332147, 6996441, 20989323]

約数ペア:

[(1, 20989323), (3, 6996441), (9, 2332147), (37, 567279), (111, 189093), (333, 63031)]