21649474

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 43776000

約数和(自身を除く): 22126526

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 98, 133, 151, 154, 209, 266, 302, 343, 418, 539, 686, 931, 1057, 1078, 1463, 1661, 1862, 2114, 2869, 2926, 3322, 3773, 5738, 6517, 7399, 7546, 10241, 11627, 13034, 14798, 20083, 20482, 23254, 31559, 40166, 51793, 63118, 71687, 81389, 103586, 140581, 143374, 162778, 220913, 281162, 441826, 569723, 984067, 1139446, 1546391, 1968134, 3092782, 10824737, 21649474]

約数ペア:

[(1, 21649474), (2, 10824737), (7, 3092782), (11, 1968134), (14, 1546391), (19, 1139446), (22, 984067), (38, 569723), (49, 441826), (77, 281162), (98, 220913), (133, 162778), (151, 143374), (154, 140581), (209, 103586), (266, 81389), (302, 71687), (343, 63118), (418, 51793), (539, 40166), (686, 31559), (931, 23254), (1057, 20482), (1078, 20083), (1463, 14798), (1661, 13034), (1862, 11627), (2114, 10241), (2869, 7546), (2926, 7399), (3322, 6517), (3773, 5738)]