20668401

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{733}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 32328296

約数和(自身を除く): 11659895

約数列:

[1, 3, 9, 13, 39, 117, 241, 723, 733, 2169, 2199, 3133, 6597, 9399, 9529, 28197, 28587, 85761, 176653, 529959, 1589877, 2296489, 6889467, 20668401]

約数ペア:

[(1, 20668401), (3, 6889467), (9, 2296489), (13, 1589877), (39, 529959), (117, 176653), (241, 85761), (723, 28587), (733, 28197), (2169, 9529), (2199, 9399), (3133, 6597)]