28000791

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 22318569

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 179, 191, 273, 537, 573, 819, 1253, 1337, 1611, 1719, 2327, 2483, 3759, 4011, 6981, 7449, 11277, 12033, 16289, 17381, 20943, 22347, 34189, 48867, 52143, 102567, 146601, 156429, 239323, 307701, 444457, 717969, 1333371, 2153907, 3111199, 4000113, 9333597, 28000791]

約数ペア:

[(1, 28000791), (3, 9333597), (7, 4000113), (9, 3111199), (13, 2153907), (21, 1333371), (39, 717969), (63, 444457), (91, 307701), (117, 239323), (179, 156429), (191, 146601), (273, 102567), (537, 52143), (573, 48867), (819, 34189), (1253, 22347), (1337, 20943), (1611, 17381), (1719, 16289), (2327, 12033), (2483, 11277), (3759, 7449), (4011, 6981)]