20198009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 22417920

約数和(自身を除く): 2219911

約数列:

[1, 13, 71, 79, 277, 923, 1027, 3601, 5609, 19667, 21883, 72917, 255671, 284479, 1553693, 20198009]

約数ペア:

[(1, 20198009), (13, 1553693), (71, 284479), (79, 255671), (277, 72917), (923, 21883), (1027, 19667), (3601, 5609)]