19967486

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21089794

約数列:

[1, 2, 7, 11, 14, 17, 22, 29, 34, 58, 77, 119, 154, 187, 203, 238, 263, 319, 374, 406, 493, 526, 638, 986, 1309, 1841, 2233, 2618, 2893, 3451, 3682, 4466, 4471, 5423, 5786, 6902, 7627, 8942, 10846, 15254, 20251, 31297, 37961, 40502, 49181, 53389, 62594, 75922, 83897, 98362, 106778, 129659, 167794, 259318, 344267, 587279, 688534, 907613, 1174558, 1426249, 1815226, 2852498, 9983743, 19967486]

約数ペア:

[(1, 19967486), (2, 9983743), (7, 2852498), (11, 1815226), (14, 1426249), (17, 1174558), (22, 907613), (29, 688534), (34, 587279), (58, 344267), (77, 259318), (119, 167794), (154, 129659), (187, 106778), (203, 98362), (238, 83897), (263, 75922), (319, 62594), (374, 53389), (406, 49181), (493, 40502), (526, 37961), (638, 31297), (986, 20251), (1309, 15254), (1841, 10846), (2233, 8942), (2618, 7627), (2893, 6902), (3451, 5786), (3682, 5423), (4466, 4471)]