81172413

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 139426560

約数和(自身を除く): 58254147

約数列:

[1, 3, 7, 9, 21, 37, 63, 97, 111, 259, 291, 333, 359, 679, 777, 873, 1077, 2037, 2331, 2513, 3231, 3589, 6111, 7539, 10767, 13283, 22617, 25123, 32301, 34823, 39849, 75369, 92981, 104469, 119547, 226107, 243761, 278943, 313407, 731283, 836829, 1288451, 2193849, 3865353, 9019157, 11596059, 27057471, 81172413]

約数ペア:

[(1, 81172413), (3, 27057471), (7, 11596059), (9, 9019157), (21, 3865353), (37, 2193849), (63, 1288451), (97, 836829), (111, 731283), (259, 313407), (291, 278943), (333, 243761), (359, 226107), (679, 119547), (777, 104469), (873, 92981), (1077, 75369), (2037, 39849), (2331, 34823), (2513, 32301), (3231, 25123), (3589, 22617), (6111, 13283), (7539, 10767)]