20789124

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40289}}^1$

素因数の和:40339

約数の個数: 24

約数和(自身を含む): 49637280

約数和(自身を除く): 28848156

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40289, 80578, 120867, 161156, 241734, 483468, 1732427, 3464854, 5197281, 6929708, 10394562, 20789124]

約数ペア:

[(1, 20789124), (2, 10394562), (3, 6929708), (4, 5197281), (6, 3464854), (12, 1732427), (43, 483468), (86, 241734), (129, 161156), (172, 120867), (258, 80578), (516, 40289)]