19640078

素因数分解:

$2^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:248

約数の個数: 24

約数和(自身を含む): 31075488

約数和(自身を除く): 11435410

約数列:

[1, 2, 43, 47, 86, 94, 113, 226, 1849, 2021, 3698, 4042, 4859, 5311, 9718, 10622, 86903, 173806, 208937, 228373, 417874, 456746, 9820039, 19640078]

約数ペア:

[(1, 19640078), (2, 9820039), (43, 456746), (47, 417874), (86, 228373), (94, 208937), (113, 173806), (226, 86903), (1849, 10622), (2021, 9718), (3698, 5311), (4042, 4859)]