20649178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^2$

素因数の和:310

約数の個数: 24

約数和(自身を含む): 34534080

約数和(自身を除く): 13884902

約数列:

[1, 2, 11, 22, 79, 109, 158, 218, 869, 1199, 1738, 2398, 8611, 11881, 17222, 23762, 94721, 130691, 189442, 261382, 938599, 1877198, 10324589, 20649178]

約数ペア:

[(1, 20649178), (2, 10324589), (11, 1877198), (22, 938599), (79, 261382), (109, 189442), (158, 130691), (218, 94721), (869, 23762), (1199, 17222), (1738, 11881), (2398, 8611)]