19898889188

素因数分解:

$2^2\times {\mathrm{911}}^1\times {\mathrm{5460727}}^1$

素因数の和:5461642

約数の個数: 12

約数和(自身を含む): 34861287552

約数和(自身を除く): 14962398364

約数列:

[1, 2, 4, 911, 1822, 3644, 5460727, 10921454, 21842908, 4974722297, 9949444594, 19898889188]

約数ペア:

[(1, 19898889188), (2, 9949444594), (4, 4974722297), (911, 21842908), (1822, 10921454), (3644, 5460727)]