18306705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 32183424

約数和(自身を除く): 13876719

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 103, 123, 205, 255, 289, 309, 515, 615, 697, 867, 1445, 1545, 1751, 2091, 3485, 4223, 4335, 5253, 8755, 10455, 11849, 12669, 21115, 26265, 29767, 35547, 59245, 63345, 71791, 89301, 148835, 177735, 215373, 358955, 446505, 1076865, 1220447, 3661341, 6102235, 18306705]

約数ペア:

[(1, 18306705), (3, 6102235), (5, 3661341), (15, 1220447), (17, 1076865), (41, 446505), (51, 358955), (85, 215373), (103, 177735), (123, 148835), (205, 89301), (255, 71791), (289, 63345), (309, 59245), (515, 35547), (615, 29767), (697, 26265), (867, 21115), (1445, 12669), (1545, 11849), (1751, 10455), (2091, 8755), (3485, 5253), (4223, 4335)]