20381536

素因数分解:

$2^5\times 7^1\times {\mathrm{90989}}^1$

素因数の和:91006

約数の個数: 24

約数和(自身を含む): 45858960

約数和(自身を除く): 25477424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 90989, 181978, 363956, 636923, 727912, 1273846, 1455824, 2547692, 2911648, 5095384, 10190768, 20381536]

約数ペア:

[(1, 20381536), (2, 10190768), (4, 5095384), (7, 2911648), (8, 2547692), (14, 1455824), (16, 1273846), (28, 727912), (32, 636923), (56, 363956), (112, 181978), (224, 90989)]