19958554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 19958246

約数列:

[1, 2, 7, 11, 14, 22, 29, 41, 58, 77, 82, 109, 154, 203, 218, 287, 319, 406, 451, 574, 638, 763, 902, 1189, 1199, 1526, 2233, 2378, 2398, 3157, 3161, 4466, 4469, 6314, 6322, 8323, 8393, 8938, 13079, 16646, 16786, 22127, 26158, 31283, 34771, 44254, 49159, 62566, 69542, 91553, 98318, 129601, 183106, 243397, 259202, 344113, 486794, 688226, 907207, 1425611, 1814414, 2851222, 9979277, 19958554]

約数ペア:

[(1, 19958554), (2, 9979277), (7, 2851222), (11, 1814414), (14, 1425611), (22, 907207), (29, 688226), (41, 486794), (58, 344113), (77, 259202), (82, 243397), (109, 183106), (154, 129601), (203, 98318), (218, 91553), (287, 69542), (319, 62566), (406, 49159), (451, 44254), (574, 34771), (638, 31283), (763, 26158), (902, 22127), (1189, 16786), (1199, 16646), (1526, 13079), (2233, 8938), (2378, 8393), (2398, 8323), (3157, 6322), (3161, 6314), (4466, 4469)]