20678164

素因数分解:

$2^2\times {\mathrm{13}}^4\times {\mathrm{181}}^1$

素因数の和:237

約数の個数: 30

約数和(自身を含む): 39418834

約数和(自身を除く): 18740670

約数列:

[1, 2, 4, 13, 26, 52, 169, 181, 338, 362, 676, 724, 2197, 2353, 4394, 4706, 8788, 9412, 28561, 30589, 57122, 61178, 114244, 122356, 397657, 795314, 1590628, 5169541, 10339082, 20678164]

約数ペア:

[(1, 20678164), (2, 10339082), (4, 5169541), (13, 1590628), (26, 795314), (52, 397657), (169, 122356), (181, 114244), (338, 61178), (362, 57122), (676, 30589), (724, 28561), (2197, 9412), (2353, 8788), (4394, 4706)]