20429528

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{743}}^1$

素因数の和:1247

約数の個数: 32

約数和(自身を含む): 43925760

約数和(自身を除く): 23496232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 743, 982, 1486, 1964, 2972, 3437, 3928, 5201, 5944, 6874, 10402, 13748, 20804, 27496, 41608, 364813, 729626, 1459252, 2553691, 2918504, 5107382, 10214764, 20429528]

約数ペア:

[(1, 20429528), (2, 10214764), (4, 5107382), (7, 2918504), (8, 2553691), (14, 1459252), (28, 729626), (56, 364813), (491, 41608), (743, 27496), (982, 20804), (1486, 13748), (1964, 10402), (2972, 6874), (3437, 5944), (3928, 5201)]