2641005

素因数分解:

$3^4\times 5^1\times {\mathrm{6521}}^1$

素因数の和:6538

約数の個数: 20

約数和(自身を含む): 4734972

約数和(自身を除く): 2093967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6521, 19563, 32605, 58689, 97815, 176067, 293445, 528201, 880335, 2641005]

約数ペア:

[(1, 2641005), (3, 880335), (5, 528201), (9, 293445), (15, 176067), (27, 97815), (45, 58689), (81, 32605), (135, 19563), (405, 6521)]