778834791

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2039}}^1$

素因数の和:2145

約数の個数: 64

約数和(自身を含む): 1378713600

約数和(自身を除く): 599878809

約数列:

[1, 3, 7, 9, 21, 27, 43, 47, 63, 129, 141, 189, 301, 329, 387, 423, 903, 987, 1161, 1269, 2021, 2039, 2709, 2961, 6063, 6117, 8127, 8883, 14147, 14273, 18189, 18351, 42441, 42819, 54567, 55053, 87677, 95833, 127323, 128457, 263031, 287499, 381969, 385371, 613739, 670831, 789093, 862497, 1841217, 2012493, 2367279, 2587491, 4120819, 5523651, 6037479, 12362457, 16570953, 18112437, 28845733, 37087371, 86537199, 111262113, 259611597, 778834791]

約数ペア:

[(1, 778834791), (3, 259611597), (7, 111262113), (9, 86537199), (21, 37087371), (27, 28845733), (43, 18112437), (47, 16570953), (63, 12362457), (129, 6037479), (141, 5523651), (189, 4120819), (301, 2587491), (329, 2367279), (387, 2012493), (423, 1841217), (903, 862497), (987, 789093), (1161, 670831), (1269, 613739), (2021, 385371), (2039, 381969), (2709, 287499), (2961, 263031), (6063, 128457), (6117, 127323), (8127, 95833), (8883, 87677), (14147, 55053), (14273, 54567), (18189, 42819), (18351, 42441)]