16980558

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 40857600

約数和(自身を除く): 23877042

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 49, 74, 98, 111, 147, 222, 223, 259, 294, 343, 446, 518, 669, 686, 777, 1029, 1338, 1554, 1561, 1813, 2058, 3122, 3626, 4683, 5439, 8251, 9366, 10878, 10927, 12691, 16502, 21854, 24753, 25382, 32781, 38073, 49506, 57757, 65562, 76146, 76489, 115514, 152978, 173271, 229467, 346542, 404299, 458934, 808598, 1212897, 2425794, 2830093, 5660186, 8490279, 16980558]

約数ペア:

[(1, 16980558), (2, 8490279), (3, 5660186), (6, 2830093), (7, 2425794), (14, 1212897), (21, 808598), (37, 458934), (42, 404299), (49, 346542), (74, 229467), (98, 173271), (111, 152978), (147, 115514), (222, 76489), (223, 76146), (259, 65562), (294, 57757), (343, 49506), (446, 38073), (518, 32781), (669, 25382), (686, 24753), (777, 21854), (1029, 16502), (1338, 12691), (1554, 10927), (1561, 10878), (1813, 9366), (2058, 8251), (3122, 5439), (3626, 4683)]