18717807771

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{421}}^1\times {\mathrm{29231}}^1$

素因数の和:29684

約数の個数: 36

約数和(自身を含む): 29347115616

約数和(自身を除く): 10629307845

約数列:

[1, 3, 9, 13, 39, 117, 169, 421, 507, 1263, 1521, 3789, 5473, 16419, 29231, 49257, 71149, 87693, 213447, 263079, 380003, 640341, 1140009, 3420027, 4940039, 12306251, 14820117, 36918753, 44460351, 110756259, 159981263, 479943789, 1439831367, 2079756419, 6239269257, 18717807771]

約数ペア:

[(1, 18717807771), (3, 6239269257), (9, 2079756419), (13, 1439831367), (39, 479943789), (117, 159981263), (169, 110756259), (421, 44460351), (507, 36918753), (1263, 14820117), (1521, 12306251), (3789, 4940039), (5473, 3420027), (16419, 1140009), (29231, 640341), (49257, 380003), (71149, 263079), (87693, 213447)]