17886387

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 26085888

約数和(自身を除く): 8199501

約数列:

[1, 3, 23, 53, 67, 69, 73, 159, 201, 219, 1219, 1541, 1679, 3551, 3657, 3869, 4623, 4891, 5037, 10653, 11607, 14673, 81673, 88987, 112493, 245019, 259223, 266961, 337479, 777669, 5962129, 17886387]

約数ペア:

[(1, 17886387), (3, 5962129), (23, 777669), (53, 337479), (67, 266961), (69, 259223), (73, 245019), (159, 112493), (201, 88987), (219, 81673), (1219, 14673), (1541, 11607), (1679, 10653), (3551, 5037), (3657, 4891), (3869, 4623)]