19209740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87317}}^1$

素因数の和:87337

約数の個数: 24

約数和(自身を含む): 44008272

約数和(自身を除く): 24798532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87317, 174634, 349268, 436585, 873170, 960487, 1746340, 1920974, 3841948, 4802435, 9604870, 19209740]

約数ペア:

[(1, 19209740), (2, 9604870), (4, 4802435), (5, 3841948), (10, 1920974), (11, 1746340), (20, 960487), (22, 873170), (44, 436585), (55, 349268), (110, 174634), (220, 87317)]