20835555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1811}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 36529920

約数和(自身を除く): 15694365

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 177, 195, 295, 767, 885, 1811, 2301, 3835, 5433, 9055, 11505, 23543, 27165, 70629, 106849, 117715, 320547, 353145, 534245, 1389037, 1602735, 4167111, 6945185, 20835555]

約数ペア:

[(1, 20835555), (3, 6945185), (5, 4167111), (13, 1602735), (15, 1389037), (39, 534245), (59, 353145), (65, 320547), (177, 117715), (195, 106849), (295, 70629), (767, 27165), (885, 23543), (1811, 11505), (2301, 9055), (3835, 5433)]