21668045

素因数分解:

$5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1499}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 30780000

約数和(自身を除く): 9111955

約数列:

[1, 5, 7, 35, 49, 59, 245, 295, 413, 1499, 2065, 2891, 7495, 10493, 14455, 52465, 73451, 88441, 367255, 442205, 619087, 3095435, 4333609, 21668045]

約数ペア:

[(1, 21668045), (5, 4333609), (7, 3095435), (35, 619087), (49, 442205), (59, 367255), (245, 88441), (295, 73451), (413, 52465), (1499, 14455), (2065, 10493), (2891, 7495)]