19172216

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 44505600

約数和(自身を除く): 25333384

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 56, 74, 76, 133, 148, 152, 259, 266, 296, 487, 518, 532, 703, 974, 1036, 1064, 1406, 1948, 2072, 2812, 3409, 3896, 4921, 5624, 6818, 9253, 9842, 13636, 18019, 18506, 19684, 27272, 36038, 37012, 39368, 64771, 72076, 74024, 126133, 129542, 144152, 252266, 259084, 342361, 504532, 518168, 684722, 1009064, 1369444, 2396527, 2738888, 4793054, 9586108, 19172216]

約数ペア:

[(1, 19172216), (2, 9586108), (4, 4793054), (7, 2738888), (8, 2396527), (14, 1369444), (19, 1009064), (28, 684722), (37, 518168), (38, 504532), (56, 342361), (74, 259084), (76, 252266), (133, 144152), (148, 129542), (152, 126133), (259, 74024), (266, 72076), (296, 64771), (487, 39368), (518, 37012), (532, 36038), (703, 27272), (974, 19684), (1036, 18506), (1064, 18019), (1406, 13636), (1948, 9842), (2072, 9253), (2812, 6818), (3409, 5624), (3896, 4921)]