28121885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2677}}^1$

素因数の和:2884

約数の個数: 16

約数和(自身を含む): 37020672

約数和(自身を除く): 8898787

約数列:

[1, 5, 11, 55, 191, 955, 2101, 2677, 10505, 13385, 29447, 147235, 511307, 2556535, 5624377, 28121885]

約数ペア:

[(1, 28121885), (5, 5624377), (11, 2556535), (55, 511307), (191, 147235), (955, 29447), (2101, 13385), (2677, 10505)]