20914828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{27961}}^1$

素因数の和:27993

約数の個数: 24

約数和(自身を含む): 42278544

約数和(自身を除く): 21363716

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 27961, 55922, 111844, 307571, 475337, 615142, 950674, 1230284, 1901348, 5228707, 10457414, 20914828]

約数ペア:

[(1, 20914828), (2, 10457414), (4, 5228707), (11, 1901348), (17, 1230284), (22, 950674), (34, 615142), (44, 475337), (68, 307571), (187, 111844), (374, 55922), (748, 27961)]