399894791

素因数分解:

${\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{19489}}^1$

素因数の和:19594

約数の個数: 12

約数和(自身を含む): 430806960

約数和(自身を除く): 30912169

約数列:

[1, 17, 71, 289, 1207, 19489, 20519, 331313, 1383719, 5632321, 23523223, 399894791]

約数ペア:

[(1, 399894791), (17, 23523223), (71, 5632321), (289, 1383719), (1207, 331313), (19489, 20519)]