20351390

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18671}}^1$

素因数の和:18787

約数の個数: 16

約数和(自身を含む): 36970560

約数和(自身を除く): 16619170

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18671, 37342, 93355, 186710, 2035139, 4070278, 10175695, 20351390]

約数ペア:

[(1, 20351390), (2, 10175695), (5, 4070278), (10, 2035139), (109, 186710), (218, 93355), (545, 37342), (1090, 18671)]