81728361

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 146397888

約数和(自身を除く): 64669527

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 69, 99, 117, 121, 143, 207, 251, 253, 299, 363, 429, 753, 759, 897, 1089, 1287, 1573, 2259, 2277, 2691, 2761, 2783, 3263, 3289, 4719, 5773, 8283, 8349, 9789, 9867, 14157, 17319, 24849, 25047, 29367, 29601, 30371, 35893, 36179, 51957, 63503, 75049, 91113, 107679, 108537, 190509, 225147, 273339, 323037, 325611, 394823, 571527, 675441, 698533, 825539, 1184469, 2095599, 2476617, 3553407, 6286797, 7429851, 9080929, 27242787, 81728361]

約数ペア:

[(1, 81728361), (3, 27242787), (9, 9080929), (11, 7429851), (13, 6286797), (23, 3553407), (33, 2476617), (39, 2095599), (69, 1184469), (99, 825539), (117, 698533), (121, 675441), (143, 571527), (207, 394823), (251, 325611), (253, 323037), (299, 273339), (363, 225147), (429, 190509), (753, 108537), (759, 107679), (897, 91113), (1089, 75049), (1287, 63503), (1573, 51957), (2259, 36179), (2277, 35893), (2691, 30371), (2761, 29601), (2783, 29367), (3263, 25047), (3289, 24849), (4719, 17319), (5773, 14157), (8283, 9867), (8349, 9789)]