20811258

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{88937}}^1$

素因数の和:88958

約数の個数: 24

約数和(自身を含む): 48560148

約数和(自身を除く): 27748890

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 88937, 177874, 266811, 533622, 800433, 1156181, 1600866, 2312362, 3468543, 6937086, 10405629, 20811258]

約数ペア:

[(1, 20811258), (2, 10405629), (3, 6937086), (6, 3468543), (9, 2312362), (13, 1600866), (18, 1156181), (26, 800433), (39, 533622), (78, 266811), (117, 177874), (234, 88937)]