18929390

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4273}}^1$

素因数の和:4723

約数の個数: 16

約数和(自身を含む): 34157808

約数和(自身を除く): 15228418

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4273, 4430, 8546, 21365, 42730, 1892939, 3785878, 9464695, 18929390]

約数ペア:

[(1, 18929390), (2, 9464695), (5, 3785878), (10, 1892939), (443, 42730), (886, 21365), (2215, 8546), (4273, 4430)]