20863575

素因数分解:

$3^4\times 5^2\times {\mathrm{10303}}^1$

素因数の和:10325

約数の個数: 30

約数和(自身を含む): 38650304

約数和(自身を除く): 17786729

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10303, 30909, 51515, 92727, 154545, 257575, 278181, 463635, 772725, 834543, 1390905, 2318175, 4172715, 6954525, 20863575]

約数ペア:

[(1, 20863575), (3, 6954525), (5, 4172715), (9, 2318175), (15, 1390905), (25, 834543), (27, 772725), (45, 463635), (75, 278181), (81, 257575), (135, 154545), (225, 92727), (405, 51515), (675, 30909), (2025, 10303)]