20786788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{2063}}^1$

素因数の和:2307

約数の個数: 24

約数和(自身を含む): 39876480

約数和(自身を除く): 19089692

約数列:

[1, 2, 4, 11, 22, 44, 229, 458, 916, 2063, 2519, 4126, 5038, 8252, 10076, 22693, 45386, 90772, 472427, 944854, 1889708, 5196697, 10393394, 20786788]

約数ペア:

[(1, 20786788), (2, 10393394), (4, 5196697), (11, 1889708), (22, 944854), (44, 472427), (229, 90772), (458, 45386), (916, 22693), (2063, 10076), (2519, 8252), (4126, 5038)]