18103490

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20341}}^1$

素因数の和:20437

約数の個数: 16

約数和(自身を含む): 32954040

約数和(自身を除く): 14850550

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 20341, 40682, 101705, 203410, 1810349, 3620698, 9051745, 18103490]

約数ペア:

[(1, 18103490), (2, 9051745), (5, 3620698), (10, 1810349), (89, 203410), (178, 101705), (445, 40682), (890, 20341)]