21793065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 43752960

約数和(自身を除く): 21959895

約数列:

[1, 3, 5, 7, 15, 17, 21, 29, 35, 51, 85, 87, 105, 119, 145, 203, 255, 357, 421, 435, 493, 595, 609, 1015, 1263, 1479, 1785, 2105, 2465, 2947, 3045, 3451, 6315, 7157, 7395, 8841, 10353, 12209, 14735, 17255, 21471, 35785, 36627, 44205, 50099, 51765, 61045, 85463, 107355, 150297, 183135, 207553, 250495, 256389, 427315, 622659, 751485, 1037765, 1281945, 1452871, 3113295, 4358613, 7264355, 21793065]

約数ペア:

[(1, 21793065), (3, 7264355), (5, 4358613), (7, 3113295), (15, 1452871), (17, 1281945), (21, 1037765), (29, 751485), (35, 622659), (51, 427315), (85, 256389), (87, 250495), (105, 207553), (119, 183135), (145, 150297), (203, 107355), (255, 85463), (357, 61045), (421, 51765), (435, 50099), (493, 44205), (595, 36627), (609, 35785), (1015, 21471), (1263, 17255), (1479, 14735), (1785, 12209), (2105, 10353), (2465, 8841), (2947, 7395), (3045, 7157), (3451, 6315)]