18181716

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{823}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 48728064

約数和(自身を除く): 30546348

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 263, 526, 789, 823, 1052, 1578, 1646, 1841, 2469, 3156, 3292, 3682, 4938, 5523, 5761, 7364, 9876, 11046, 11522, 17283, 22092, 23044, 34566, 69132, 216449, 432898, 649347, 865796, 1298694, 1515143, 2597388, 3030286, 4545429, 6060572, 9090858, 18181716]

約数ペア:

[(1, 18181716), (2, 9090858), (3, 6060572), (4, 4545429), (6, 3030286), (7, 2597388), (12, 1515143), (14, 1298694), (21, 865796), (28, 649347), (42, 432898), (84, 216449), (263, 69132), (526, 34566), (789, 23044), (823, 22092), (1052, 17283), (1578, 11522), (1646, 11046), (1841, 9876), (2469, 7364), (3156, 5761), (3292, 5523), (3682, 4938)]