19718765

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{2963}}^1$

素因数の和:3001

約数の個数: 16

約数和(自身を含む): 26035776

約数和(自身を除く): 6317011

約数列:

[1, 5, 11, 55, 121, 605, 1331, 2963, 6655, 14815, 32593, 162965, 358523, 1792615, 3943753, 19718765]

約数ペア:

[(1, 19718765), (5, 3943753), (11, 1792615), (55, 358523), (121, 162965), (605, 32593), (1331, 14815), (2963, 6655)]