18691670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2624

約数の個数: 32

約数和(自身を含む): 36466848

約数和(自身を除く): 17775178

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2557, 3655, 5114, 7310, 12785, 25570, 43469, 86938, 109951, 217345, 219902, 434690, 549755, 1099510, 1869167, 3738334, 9345835, 18691670]

約数ペア:

[(1, 18691670), (2, 9345835), (5, 3738334), (10, 1869167), (17, 1099510), (34, 549755), (43, 434690), (85, 219902), (86, 217345), (170, 109951), (215, 86938), (430, 43469), (731, 25570), (1462, 12785), (2557, 7310), (3655, 5114)]