20965204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{2089}}^1$

素因数の和:2299

約数の個数: 24

約数和(自身を含む): 39735080

約数和(自身を除く): 18769876

約数列:

[1, 2, 4, 13, 26, 52, 193, 386, 772, 2089, 2509, 4178, 5018, 8356, 10036, 27157, 54314, 108628, 403177, 806354, 1612708, 5241301, 10482602, 20965204]

約数ペア:

[(1, 20965204), (2, 10482602), (4, 5241301), (13, 1612708), (26, 806354), (52, 403177), (193, 108628), (386, 54314), (772, 27157), (2089, 10036), (2509, 8356), (4178, 5018)]