681569469

素因数分解:

$3^2\times 7^4\times {\mathrm{31541}}^1$

素因数の和:31575

約数の個数: 30

約数和(自身を含む): 1148538846

約数和(自身を除く): 466969377

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 2401, 3087, 7203, 21609, 31541, 94623, 220787, 283869, 662361, 1545509, 1987083, 4636527, 10818563, 13909581, 32455689, 75729941, 97367067, 227189823, 681569469]

約数ペア:

[(1, 681569469), (3, 227189823), (7, 97367067), (9, 75729941), (21, 32455689), (49, 13909581), (63, 10818563), (147, 4636527), (343, 1987083), (441, 1545509), (1029, 662361), (2401, 283869), (3087, 220787), (7203, 94623), (21609, 31541)]