20486385

素因数分解:

$3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{577}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 36622080

約数和(自身を除く): 16135695

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 263, 577, 789, 1315, 1731, 2367, 2885, 3945, 5193, 7101, 8655, 11835, 15579, 25965, 35505, 77895, 151751, 455253, 758755, 1365759, 2276265, 4097277, 6828795, 20486385]

約数ペア:

[(1, 20486385), (3, 6828795), (5, 4097277), (9, 2276265), (15, 1365759), (27, 758755), (45, 455253), (135, 151751), (263, 77895), (577, 35505), (789, 25965), (1315, 15579), (1731, 11835), (2367, 8655), (2885, 7101), (3945, 5193)]