21365795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{811}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 28062720

約数和(自身を除く): 6696925

約数列:

[1, 5, 11, 55, 479, 811, 2395, 4055, 5269, 8921, 26345, 44605, 388469, 1942345, 4273159, 21365795]

約数ペア:

[(1, 21365795), (5, 4273159), (11, 1942345), (55, 388469), (479, 44605), (811, 26345), (2395, 8921), (4055, 5269)]