20918391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{9091}}^1$

素因数の和:9166

約数の個数: 16

約数和(自身を含む): 30549120

約数和(自身を除く): 9630729

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 9091, 27273, 118183, 354549, 536369, 1609107, 6972797, 20918391]

約数ペア:

[(1, 20918391), (3, 6972797), (13, 1609107), (39, 536369), (59, 354549), (177, 118183), (767, 27273), (2301, 9091)]