18870465

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{659}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13062975

約数列:

[1, 3, 5, 15, 23, 69, 83, 115, 249, 345, 415, 659, 1245, 1909, 1977, 3295, 5727, 9545, 9885, 15157, 28635, 45471, 54697, 75785, 164091, 227355, 273485, 820455, 1258031, 3774093, 6290155, 18870465]

約数ペア:

[(1, 18870465), (3, 6290155), (5, 3774093), (15, 1258031), (23, 820455), (69, 273485), (83, 227355), (115, 164091), (249, 75785), (345, 54697), (415, 45471), (659, 28635), (1245, 15157), (1909, 9885), (1977, 9545), (3295, 5727)]