20278934

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1213}}^1$

素因数の和:1871

約数の個数: 16

約数和(自身を含む): 32836272

約数和(自身を除く): 12557338

約数列:

[1, 2, 13, 26, 643, 1213, 1286, 2426, 8359, 15769, 16718, 31538, 779959, 1559918, 10139467, 20278934]

約数ペア:

[(1, 20278934), (2, 10139467), (13, 1559918), (26, 779959), (643, 31538), (1213, 16718), (1286, 15769), (2426, 8359)]