18968570

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21313}}^1$

素因数の和:21409

約数の個数: 16

約数和(自身を含む): 34528680

約数和(自身を除く): 15560110

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21313, 42626, 106565, 213130, 1896857, 3793714, 9484285, 18968570]

約数ペア:

[(1, 18968570), (2, 9484285), (5, 3793714), (10, 1896857), (89, 213130), (178, 106565), (445, 42626), (890, 21313)]