20715486

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:569

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28532514

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 37, 51, 66, 74, 102, 111, 187, 222, 374, 407, 499, 561, 629, 814, 998, 1122, 1221, 1258, 1497, 1887, 2442, 2994, 3774, 5489, 6919, 8483, 10978, 13838, 16467, 16966, 18463, 20757, 25449, 32934, 36926, 41514, 50898, 55389, 93313, 110778, 186626, 203093, 279939, 313871, 406186, 559878, 609279, 627742, 941613, 1218558, 1883226, 3452581, 6905162, 10357743, 20715486]

約数ペア:

[(1, 20715486), (2, 10357743), (3, 6905162), (6, 3452581), (11, 1883226), (17, 1218558), (22, 941613), (33, 627742), (34, 609279), (37, 559878), (51, 406186), (66, 313871), (74, 279939), (102, 203093), (111, 186626), (187, 110778), (222, 93313), (374, 55389), (407, 50898), (499, 41514), (561, 36926), (629, 32934), (814, 25449), (998, 20757), (1122, 18463), (1221, 16966), (1258, 16467), (1497, 13838), (1887, 10978), (2442, 8483), (2994, 6919), (3774, 5489)]