20785028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{2081}}^1$

素因数の和:2323

約数の個数: 24

約数和(自身を含む): 39874464

約数和(自身を除く): 19089436

約数列:

[1, 2, 4, 11, 22, 44, 227, 454, 908, 2081, 2497, 4162, 4994, 8324, 9988, 22891, 45782, 91564, 472387, 944774, 1889548, 5196257, 10392514, 20785028]

約数ペア:

[(1, 20785028), (2, 10392514), (4, 5196257), (11, 1889548), (22, 944774), (44, 472387), (227, 91564), (454, 45782), (908, 22891), (2081, 9988), (2497, 8324), (4162, 4994)]