20864987

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2753}}^1$

素因数の和:2830

約数の個数: 16

約数和(自身を含む): 24984288

約数和(自身を除く): 4119301

約数列:

[1, 11, 13, 53, 143, 583, 689, 2753, 7579, 30283, 35789, 145909, 393679, 1604999, 1896817, 20864987]

約数ペア:

[(1, 20864987), (11, 1896817), (13, 1604999), (53, 393679), (143, 145909), (583, 35789), (689, 30283), (2753, 7579)]