409820877

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{219979}}^1$

素因数の和:220014

約数の個数: 20

約数和(自身を含む): 638821920

約数和(自身を除く): 229001043

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 219979, 659937, 1979811, 5059517, 5939433, 15178551, 17818299, 45535653, 136606959, 409820877]

約数ペア:

[(1, 409820877), (3, 136606959), (9, 45535653), (23, 17818299), (27, 15178551), (69, 5939433), (81, 5059517), (207, 1979811), (621, 659937), (1863, 219979)]