18180015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{103}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 34404864

約数和(自身を除く): 16224849

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 103, 105, 123, 205, 287, 309, 515, 615, 721, 861, 1435, 1545, 1681, 2163, 3605, 4223, 4305, 5043, 8405, 10815, 11767, 12669, 21115, 25215, 29561, 35301, 58835, 63345, 88683, 147805, 173143, 176505, 443415, 519429, 865715, 1212001, 2597145, 3636003, 6060005, 18180015]

約数ペア:

[(1, 18180015), (3, 6060005), (5, 3636003), (7, 2597145), (15, 1212001), (21, 865715), (35, 519429), (41, 443415), (103, 176505), (105, 173143), (123, 147805), (205, 88683), (287, 63345), (309, 58835), (515, 35301), (615, 29561), (721, 25215), (861, 21115), (1435, 12669), (1545, 11767), (1681, 10815), (2163, 8405), (3605, 5043), (4223, 4305)]