18675826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 16160654

約数列:

[1, 2, 13, 17, 26, 29, 31, 34, 47, 58, 62, 94, 221, 377, 403, 442, 493, 527, 611, 754, 799, 806, 899, 986, 1054, 1222, 1363, 1457, 1598, 1798, 2726, 2914, 6409, 6851, 10387, 11687, 12818, 13702, 15283, 17719, 18941, 20774, 23171, 23374, 24769, 30566, 35438, 37882, 42253, 46342, 49538, 84506, 198679, 301223, 321997, 397358, 549289, 602446, 643994, 718301, 1098578, 1436602, 9337913, 18675826]

約数ペア:

[(1, 18675826), (2, 9337913), (13, 1436602), (17, 1098578), (26, 718301), (29, 643994), (31, 602446), (34, 549289), (47, 397358), (58, 321997), (62, 301223), (94, 198679), (221, 84506), (377, 49538), (403, 46342), (442, 42253), (493, 37882), (527, 35438), (611, 30566), (754, 24769), (799, 23374), (806, 23171), (899, 20774), (986, 18941), (1054, 17719), (1222, 15283), (1363, 13702), (1457, 12818), (1598, 11687), (1798, 10387), (2726, 6851), (2914, 6409)]