18318465

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1654

約数の個数: 48

約数和(自身を含む): 36167040

約数和(自身を除く): 17848575

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1609, 2277, 3795, 4827, 8045, 11385, 14481, 17699, 24135, 37007, 53097, 72405, 88495, 111021, 159291, 185035, 265485, 333063, 407077, 555105, 796455, 1221231, 1665315, 2035385, 3663693, 6106155, 18318465]

約数ペア:

[(1, 18318465), (3, 6106155), (5, 3663693), (9, 2035385), (11, 1665315), (15, 1221231), (23, 796455), (33, 555105), (45, 407077), (55, 333063), (69, 265485), (99, 185035), (115, 159291), (165, 111021), (207, 88495), (253, 72405), (345, 53097), (495, 37007), (759, 24135), (1035, 17699), (1265, 14481), (1609, 11385), (2277, 8045), (3795, 4827)]