20407005

素因数分解:

$3^3\times 5^1\times {\mathrm{151163}}^1$

素因数の和:151177

約数の個数: 16

約数和(自身を含む): 36279360

約数和(自身を除く): 15872355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151163, 453489, 755815, 1360467, 2267445, 4081401, 6802335, 20407005]

約数ペア:

[(1, 20407005), (3, 6802335), (5, 4081401), (9, 2267445), (15, 1360467), (27, 755815), (45, 453489), (135, 151163)]