21403804964

素因数分解:

$2^2\times {\mathrm{311}}^1\times {\mathrm{863}}^1\times {\mathrm{19937}}^1$

素因数の和:21115

約数の個数: 24

約数和(自身を含む): 37622527488

約数和(自身を除く): 16218722524

約数列:

[1, 2, 4, 311, 622, 863, 1244, 1726, 3452, 19937, 39874, 79748, 268393, 536786, 1073572, 6200407, 12400814, 17205631, 24801628, 34411262, 68822524, 5350951241, 10701902482, 21403804964]

約数ペア:

[(1, 21403804964), (2, 10701902482), (4, 5350951241), (311, 68822524), (622, 34411262), (863, 24801628), (1244, 17205631), (1726, 12400814), (3452, 6200407), (19937, 1073572), (39874, 536786), (79748, 268393)]