21222944

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 43400448

約数和(自身を除く): 22177504

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 103, 137, 188, 206, 274, 376, 412, 548, 752, 824, 1096, 1504, 1648, 2192, 3296, 4384, 4841, 6439, 9682, 12878, 14111, 19364, 25756, 28222, 38728, 51512, 56444, 77456, 103024, 112888, 154912, 206048, 225776, 451552, 663217, 1326434, 2652868, 5305736, 10611472, 21222944]

約数ペア:

[(1, 21222944), (2, 10611472), (4, 5305736), (8, 2652868), (16, 1326434), (32, 663217), (47, 451552), (94, 225776), (103, 206048), (137, 154912), (188, 112888), (206, 103024), (274, 77456), (376, 56444), (412, 51512), (548, 38728), (752, 28222), (824, 25756), (1096, 19364), (1504, 14111), (1648, 12878), (2192, 9682), (3296, 6439), (4384, 4841)]