20578454

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:704

約数の個数: 24

約数和(自身を含む): 33796440

約数和(自身を除く): 13217986

約数列:

[1, 2, 13, 26, 107, 169, 214, 338, 569, 1138, 1391, 2782, 7397, 14794, 18083, 36166, 60883, 96161, 121766, 192322, 791479, 1582958, 10289227, 20578454]

約数ペア:

[(1, 20578454), (2, 10289227), (13, 1582958), (26, 791479), (107, 192322), (169, 121766), (214, 96161), (338, 60883), (569, 36166), (1138, 18083), (1391, 14794), (2782, 7397)]