289403321

素因数分解:

${\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{821}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 304915968

約数和(自身を除く): 15512647

約数列:

[1, 31, 83, 137, 821, 2573, 4247, 11371, 25451, 68143, 112477, 352501, 2112433, 3486787, 9335591, 289403321]

約数ペア:

[(1, 289403321), (31, 9335591), (83, 3486787), (137, 2112433), (821, 352501), (2573, 112477), (4247, 68143), (11371, 25451)]