19217020

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1973}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 40459104

約数和(自身を除く): 21242084

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 1973, 2435, 3946, 4870, 7892, 9740, 9865, 19730, 39460, 960851, 1921702, 3843404, 4804255, 9608510, 19217020]

約数ペア:

[(1, 19217020), (2, 9608510), (4, 4804255), (5, 3843404), (10, 1921702), (20, 960851), (487, 39460), (974, 19730), (1948, 9865), (1973, 9740), (2435, 7892), (3946, 4870)]