18710385

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 31511808

約数和(自身を除く): 12801423

約数列:

[1, 3, 5, 15, 23, 69, 115, 193, 281, 345, 579, 843, 965, 1405, 2895, 4215, 4439, 6463, 13317, 19389, 22195, 32315, 54233, 66585, 96945, 162699, 271165, 813495, 1247359, 3742077, 6236795, 18710385]

約数ペア:

[(1, 18710385), (3, 6236795), (5, 3742077), (15, 1247359), (23, 813495), (69, 271165), (115, 162699), (193, 96945), (281, 66585), (345, 54233), (579, 32315), (843, 22195), (965, 19389), (1405, 13317), (2895, 6463), (4215, 4439)]