21811496

素因数分解:

$2^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2843}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 47096640

約数和(自身を除く): 25285144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 137, 274, 548, 959, 1096, 1918, 2843, 3836, 5686, 7672, 11372, 19901, 22744, 39802, 79604, 159208, 389491, 778982, 1557964, 2726437, 3115928, 5452874, 10905748, 21811496]

約数ペア:

[(1, 21811496), (2, 10905748), (4, 5452874), (7, 3115928), (8, 2726437), (14, 1557964), (28, 778982), (56, 389491), (137, 159208), (274, 79604), (548, 39802), (959, 22744), (1096, 19901), (1918, 11372), (2843, 7672), (3836, 5686)]