20986534

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14596442

約数列:

[1, 2, 17, 23, 34, 46, 47, 94, 391, 571, 782, 799, 1081, 1142, 1598, 2162, 9707, 13133, 18377, 19414, 26266, 26837, 36754, 53674, 223261, 446522, 456229, 617251, 912458, 1234502, 10493267, 20986534]

約数ペア:

[(1, 20986534), (2, 10493267), (17, 1234502), (23, 912458), (34, 617251), (46, 456229), (47, 446522), (94, 223261), (391, 53674), (571, 36754), (782, 26837), (799, 26266), (1081, 19414), (1142, 18377), (1598, 13133), (2162, 9707)]