20909783

素因数分解:

${\mathrm{23}}^2\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:151

約数の個数: 18

約数和(自身を含む): 23119824

約数和(自身を除く): 2210041

約数列:

[1, 23, 29, 47, 529, 667, 841, 1081, 1363, 15341, 19343, 24863, 31349, 39527, 444889, 721027, 909121, 20909783]

約数ペア:

[(1, 20909783), (23, 909121), (29, 721027), (47, 444889), (529, 39527), (667, 31349), (841, 24863), (1081, 19343), (1363, 15341)]