81737019

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{853}}^1$

素因数の和:898

約数の個数: 60

約数和(自身を含む): 151280976

約数和(自身を除く): 69543957

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 169, 189, 273, 351, 507, 567, 819, 853, 1053, 1183, 1521, 2457, 2559, 3549, 4563, 5971, 7371, 7677, 10647, 11089, 13689, 17913, 23031, 31941, 33267, 53739, 69093, 77623, 95823, 99801, 144157, 161217, 232869, 299403, 432471, 483651, 698607, 898209, 1009099, 1297413, 2095821, 3027297, 3892239, 6287463, 9081891, 11676717, 27245673, 81737019]

約数ペア:

[(1, 81737019), (3, 27245673), (7, 11676717), (9, 9081891), (13, 6287463), (21, 3892239), (27, 3027297), (39, 2095821), (63, 1297413), (81, 1009099), (91, 898209), (117, 698607), (169, 483651), (189, 432471), (273, 299403), (351, 232869), (507, 161217), (567, 144157), (819, 99801), (853, 95823), (1053, 77623), (1183, 69093), (1521, 53739), (2457, 33267), (2559, 31941), (3549, 23031), (4563, 17913), (5971, 13689), (7371, 11089), (7677, 10647)]