18220005

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{467}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 34482240

約数和(自身を除く): 16262235

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 289, 459, 467, 765, 867, 1401, 1445, 2295, 2335, 2601, 4203, 4335, 7005, 7803, 7939, 12609, 13005, 21015, 23817, 39015, 39695, 63045, 71451, 119085, 134963, 214353, 357255, 404889, 674815, 1071765, 1214667, 2024445, 3644001, 6073335, 18220005]

約数ペア:

[(1, 18220005), (3, 6073335), (5, 3644001), (9, 2024445), (15, 1214667), (17, 1071765), (27, 674815), (45, 404889), (51, 357255), (85, 214353), (135, 134963), (153, 119085), (255, 71451), (289, 63045), (459, 39695), (467, 39015), (765, 23817), (867, 21015), (1401, 13005), (1445, 12609), (2295, 7939), (2335, 7803), (2601, 7005), (4203, 4335)]