71649279

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 118899872

約数和(自身を除く): 47250593

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 243, 333, 351, 481, 613, 999, 1053, 1443, 1839, 2997, 3159, 4329, 5517, 7969, 8991, 12987, 16551, 22681, 23907, 38961, 49653, 68043, 71721, 116883, 148959, 204129, 215163, 294853, 612387, 645489, 884559, 1837161, 1936467, 2653677, 5511483, 7961031, 23883093, 71649279]

約数ペア:

[(1, 71649279), (3, 23883093), (9, 7961031), (13, 5511483), (27, 2653677), (37, 1936467), (39, 1837161), (81, 884559), (111, 645489), (117, 612387), (243, 294853), (333, 215163), (351, 204129), (481, 148959), (613, 116883), (999, 71721), (1053, 68043), (1443, 49653), (1839, 38961), (2997, 23907), (3159, 22681), (4329, 16551), (5517, 12987), (7969, 8991)]