20049237

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 34070400

約数和(自身を除く): 14021163

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 311, 377, 551, 741, 933, 1131, 1653, 2223, 2799, 3393, 4043, 4959, 5909, 7163, 9019, 12129, 17727, 21489, 27057, 36387, 53181, 64467, 76817, 81171, 117247, 171361, 230451, 351741, 514083, 691353, 1055223, 1542249, 2227693, 6683079, 20049237]

約数ペア:

[(1, 20049237), (3, 6683079), (9, 2227693), (13, 1542249), (19, 1055223), (29, 691353), (39, 514083), (57, 351741), (87, 230451), (117, 171361), (171, 117247), (247, 81171), (261, 76817), (311, 64467), (377, 53181), (551, 36387), (741, 27057), (933, 21489), (1131, 17727), (1653, 12129), (2223, 9019), (2799, 7163), (3393, 5909), (4043, 4959)]