289805727

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 426240000

約数和(自身を除く): 136434273

約数列:

[1, 3, 19, 23, 57, 69, 437, 443, 499, 1311, 1329, 1497, 8417, 9481, 10189, 11477, 25251, 28443, 30567, 34431, 193591, 218063, 221057, 580773, 654189, 663171, 4200083, 5084311, 12600249, 15252933, 96601909, 289805727]

約数ペア:

[(1, 289805727), (3, 96601909), (19, 15252933), (23, 12600249), (57, 5084311), (69, 4200083), (437, 663171), (443, 654189), (499, 580773), (1311, 221057), (1329, 218063), (1497, 193591), (8417, 34431), (9481, 30567), (10189, 28443), (11477, 25251)]