20513256

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{12757}}^1$

素因数の和:12833

約数の個数: 32

約数和(自身を含む): 52052640

約数和(自身を除く): 31539384

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 12757, 25514, 38271, 51028, 76542, 102056, 153084, 306168, 854719, 1709438, 2564157, 3418876, 5128314, 6837752, 10256628, 20513256]

約数ペア:

[(1, 20513256), (2, 10256628), (3, 6837752), (4, 5128314), (6, 3418876), (8, 2564157), (12, 1709438), (24, 854719), (67, 306168), (134, 153084), (201, 102056), (268, 76542), (402, 51028), (536, 38271), (804, 25514), (1608, 12757)]