20280039

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1571}}^1$

素因数の和:1918

約数の個数: 16

約数和(自身を含む): 29226624

約数和(自身を除く): 8946585

約数列:

[1, 3, 13, 39, 331, 993, 1571, 4303, 4713, 12909, 20423, 61269, 520001, 1560003, 6760013, 20280039]

約数ペア:

[(1, 20280039), (3, 6760013), (13, 1560003), (39, 520001), (331, 61269), (993, 20423), (1571, 12909), (4303, 4713)]