18330885

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 15365115

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 89, 115, 199, 207, 267, 345, 445, 597, 801, 995, 1035, 1335, 1791, 2047, 2985, 4005, 4577, 6141, 8955, 10235, 13731, 17711, 18423, 22885, 30705, 41193, 53133, 68655, 88555, 92115, 159399, 205965, 265665, 407353, 796995, 1222059, 2036765, 3666177, 6110295, 18330885]

約数ペア:

[(1, 18330885), (3, 6110295), (5, 3666177), (9, 2036765), (15, 1222059), (23, 796995), (45, 407353), (69, 265665), (89, 205965), (115, 159399), (199, 92115), (207, 88555), (267, 68655), (345, 53133), (445, 41193), (597, 30705), (801, 22885), (995, 18423), (1035, 17711), (1335, 13731), (1791, 10235), (2047, 8955), (2985, 6141), (4005, 4577)]