20488726

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12539}}^1$

素因数の和:12603

約数の個数: 16

約数和(自身を含む): 33105600

約数和(自身を除く): 12616874

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12539, 25078, 238241, 476482, 539177, 1078354, 10244363, 20488726]

約数ペア:

[(1, 20488726), (2, 10244363), (19, 1078354), (38, 539177), (43, 476482), (86, 238241), (817, 25078), (1634, 12539)]