81517293

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 145474560

約数和(自身を除く): 63957267

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 43, 99, 117, 129, 143, 297, 351, 387, 429, 473, 491, 559, 1161, 1287, 1419, 1473, 1677, 3861, 4257, 4419, 5031, 5401, 6149, 6383, 12771, 13257, 15093, 16203, 18447, 19149, 21113, 48609, 55341, 57447, 63339, 70213, 145827, 166023, 172341, 190017, 210639, 232243, 274469, 570051, 631917, 696729, 823407, 1895751, 2090187, 2470221, 3019159, 6270561, 7410663, 9057477, 27172431, 81517293]

約数ペア:

[(1, 81517293), (3, 27172431), (9, 9057477), (11, 7410663), (13, 6270561), (27, 3019159), (33, 2470221), (39, 2090187), (43, 1895751), (99, 823407), (117, 696729), (129, 631917), (143, 570051), (297, 274469), (351, 232243), (387, 210639), (429, 190017), (473, 172341), (491, 166023), (559, 145827), (1161, 70213), (1287, 63339), (1419, 57447), (1473, 55341), (1677, 48609), (3861, 21113), (4257, 19149), (4419, 18447), (5031, 16203), (5401, 15093), (6149, 13257), (6383, 12771)]