18765812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{709}}^1$

素因数の和:1235

約数の個数: 24

約数和(自身を含む): 35485800

約数和(自身を除く): 16719988

約数列:

[1, 2, 4, 13, 26, 52, 509, 709, 1018, 1418, 2036, 2836, 6617, 9217, 13234, 18434, 26468, 36868, 360881, 721762, 1443524, 4691453, 9382906, 18765812]

約数ペア:

[(1, 18765812), (2, 9382906), (4, 4691453), (13, 1443524), (26, 721762), (52, 360881), (509, 36868), (709, 26468), (1018, 18434), (1418, 13234), (2036, 9217), (2836, 6617)]