20513571

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12829}}^1$

素因数の和:12886

約数の個数: 16

約数和(自身を含む): 30176160

約数和(自身を除く): 9662589

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12829, 38487, 166777, 500331, 525989, 1577967, 6837857, 20513571]

約数ペア:

[(1, 20513571), (3, 6837857), (13, 1577967), (39, 525989), (41, 500331), (123, 166777), (533, 38487), (1599, 12829)]