19651388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{288991}}^1$

素因数の和:289012

約数の個数: 12

約数和(自身を含む): 36412992

約数和(自身を除く): 16761604

約数列:

[1, 2, 4, 17, 34, 68, 288991, 577982, 1155964, 4912847, 9825694, 19651388]

約数ペア:

[(1, 19651388), (2, 9825694), (4, 4912847), (17, 1155964), (34, 577982), (68, 288991)]