19984815

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19309}}^1$

素因数の和:19343

約数の個数: 24

約数和(自身を含む): 36148320

約数和(自身を除く): 16163505

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19309, 57927, 96545, 173781, 289635, 444107, 868905, 1332321, 2220535, 3996963, 6661605, 19984815]

約数ペア:

[(1, 19984815), (3, 6661605), (5, 3996963), (9, 2220535), (15, 1332321), (23, 868905), (45, 444107), (69, 289635), (115, 173781), (207, 96545), (345, 57927), (1035, 19309)]