18171405

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 39070080

約数和(自身を除く): 20898675

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 49, 63, 67, 105, 123, 135, 147, 189, 201, 205, 245, 287, 315, 335, 369, 441, 469, 603, 615, 735, 861, 945, 1005, 1107, 1323, 1407, 1435, 1809, 1845, 2009, 2205, 2345, 2583, 2747, 3015, 3283, 4221, 4305, 5535, 6027, 6615, 7035, 7749, 8241, 9045, 9849, 10045, 12663, 12915, 13735, 16415, 18081, 19229, 21105, 24723, 29547, 30135, 38745, 41205, 49245, 54243, 57687, 63315, 74169, 88641, 90405, 96145, 123615, 134603, 147735, 173061, 271215, 288435, 370845, 403809, 443205, 519183, 673015, 865305, 1211427, 2019045, 2595915, 3634281, 6057135, 18171405]

約数ペア:

[(1, 18171405), (3, 6057135), (5, 3634281), (7, 2595915), (9, 2019045), (15, 1211427), (21, 865305), (27, 673015), (35, 519183), (41, 443205), (45, 403809), (49, 370845), (63, 288435), (67, 271215), (105, 173061), (123, 147735), (135, 134603), (147, 123615), (189, 96145), (201, 90405), (205, 88641), (245, 74169), (287, 63315), (315, 57687), (335, 54243), (369, 49245), (441, 41205), (469, 38745), (603, 30135), (615, 29547), (735, 24723), (861, 21105), (945, 19229), (1005, 18081), (1107, 16415), (1323, 13735), (1407, 12915), (1435, 12663), (1809, 10045), (1845, 9849), (2009, 9045), (2205, 8241), (2345, 7749), (2583, 7035), (2747, 6615), (3015, 6027), (3283, 5535), (4221, 4305)]