19487105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2549}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 25704000

約数和(自身を除く): 6216895

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2549, 7645, 12745, 28039, 140195, 354311, 1771555, 3897421, 19487105]

約数ペア:

[(1, 19487105), (5, 3897421), (11, 1771555), (55, 354311), (139, 140195), (695, 28039), (1529, 12745), (2549, 7645)]