19387690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2689}}^1$

素因数の和:2806

約数の個数: 32

約数和(自身を含む): 40285440

約数和(自身を除く): 20897750

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 2689, 3605, 5378, 7210, 13445, 18823, 26890, 37646, 94115, 188230, 276967, 553934, 1384835, 1938769, 2769670, 3877538, 9693845, 19387690]

約数ペア:

[(1, 19387690), (2, 9693845), (5, 3877538), (7, 2769670), (10, 1938769), (14, 1384835), (35, 553934), (70, 276967), (103, 188230), (206, 94115), (515, 37646), (721, 26890), (1030, 18823), (1442, 13445), (2689, 7210), (3605, 5378)]