18695274

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 44561664

約数和(自身を除く): 25866390

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 34, 39, 46, 51, 69, 78, 102, 138, 221, 299, 391, 442, 598, 613, 663, 782, 897, 1173, 1226, 1326, 1794, 1839, 2346, 3678, 5083, 7969, 10166, 10421, 14099, 15249, 15938, 20842, 23907, 28198, 30498, 31263, 42297, 47814, 62526, 84594, 135473, 183287, 239683, 270946, 366574, 406419, 479366, 549861, 719049, 812838, 1099722, 1438098, 3115879, 6231758, 9347637, 18695274]

約数ペア:

[(1, 18695274), (2, 9347637), (3, 6231758), (6, 3115879), (13, 1438098), (17, 1099722), (23, 812838), (26, 719049), (34, 549861), (39, 479366), (46, 406419), (51, 366574), (69, 270946), (78, 239683), (102, 183287), (138, 135473), (221, 84594), (299, 62526), (391, 47814), (442, 42297), (598, 31263), (613, 30498), (663, 28198), (782, 23907), (897, 20842), (1173, 15938), (1226, 15249), (1326, 14099), (1794, 10421), (1839, 10166), (2346, 7969), (3678, 5083)]