19109886890

素因数分解:

$2^1\times 5^1\times {\mathrm{4201}}^1\times {\mathrm{454889}}^1$

素因数の和:459097

約数の個数: 16

約数和(自身を含む): 34406060040

約数和(自身を除く): 15296173150

約数列:

[1, 2, 5, 10, 4201, 8402, 21005, 42010, 454889, 909778, 2274445, 4548890, 1910988689, 3821977378, 9554943445, 19109886890]

約数ペア:

[(1, 19109886890), (2, 9554943445), (5, 3821977378), (10, 1910988689), (4201, 4548890), (8402, 2274445), (21005, 909778), (42010, 454889)]