21477365

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3631}}^1$

素因数の和:3669

約数の個数: 24

約数和(自身を含む): 31903488

約数和(自身を除く): 10426123

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3631, 5915, 18155, 25417, 47203, 127085, 236015, 330421, 613639, 1652105, 3068195, 4295473, 21477365]

約数ペア:

[(1, 21477365), (5, 4295473), (7, 3068195), (13, 1652105), (35, 613639), (65, 330421), (91, 236015), (169, 127085), (455, 47203), (845, 25417), (1183, 18155), (3631, 5915)]