20121581636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{8089}}^1\times {\mathrm{47837}}^1$

素因数の和:55943

約数の個数: 24

約数和(自身を含む): 37926923160

約数和(自身を除く): 17805341524

約数列:

[1, 2, 4, 13, 26, 52, 8089, 16178, 32356, 47837, 95674, 105157, 191348, 210314, 420628, 621881, 1243762, 2487524, 386953493, 773906986, 1547813972, 5030395409, 10060790818, 20121581636]

約数ペア:

[(1, 20121581636), (2, 10060790818), (4, 5030395409), (13, 1547813972), (26, 773906986), (52, 386953493), (8089, 2487524), (16178, 1243762), (32356, 621881), (47837, 420628), (95674, 210314), (105157, 191348)]