21754305

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9479}}^1$

素因数の和:9510

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19199295

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9479, 28437, 47395, 85311, 142185, 161143, 255933, 426555, 483429, 805715, 1279665, 1450287, 2417145, 4350861, 7251435, 21754305]

約数ペア:

[(1, 21754305), (3, 7251435), (5, 4350861), (9, 2417145), (15, 1450287), (17, 1279665), (27, 805715), (45, 483429), (51, 426555), (85, 255933), (135, 161143), (153, 142185), (255, 85311), (459, 47395), (765, 28437), (2295, 9479)]