21562788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 54488000

約数和(自身を除く): 32925212

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 277, 499, 554, 831, 998, 1108, 1497, 1662, 1996, 2994, 3324, 3601, 5988, 6487, 7202, 10803, 12974, 14404, 19461, 21606, 25948, 38922, 43212, 77844, 138223, 276446, 414669, 552892, 829338, 1658676, 1796899, 3593798, 5390697, 7187596, 10781394, 21562788]

約数ペア:

[(1, 21562788), (2, 10781394), (3, 7187596), (4, 5390697), (6, 3593798), (12, 1796899), (13, 1658676), (26, 829338), (39, 552892), (52, 414669), (78, 276446), (156, 138223), (277, 77844), (499, 43212), (554, 38922), (831, 25948), (998, 21606), (1108, 19461), (1497, 14404), (1662, 12974), (1996, 10803), (2994, 7202), (3324, 6487), (3601, 5988)]