21137556

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2027}}^1$

素因数の和:2124

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 33375084

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 79, 132, 158, 237, 316, 474, 869, 948, 1738, 2027, 2607, 3476, 4054, 5214, 6081, 8108, 10428, 12162, 22297, 24324, 44594, 66891, 89188, 133782, 160133, 267564, 320266, 480399, 640532, 960798, 1761463, 1921596, 3522926, 5284389, 7045852, 10568778, 21137556]

約数ペア:

[(1, 21137556), (2, 10568778), (3, 7045852), (4, 5284389), (6, 3522926), (11, 1921596), (12, 1761463), (22, 960798), (33, 640532), (44, 480399), (66, 320266), (79, 267564), (132, 160133), (158, 133782), (237, 89188), (316, 66891), (474, 44594), (869, 24324), (948, 22297), (1738, 12162), (2027, 10428), (2607, 8108), (3476, 6081), (4054, 5214)]