78899751

素因数分解:

$3^4\times 7^2\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 60

約数和(自身を含む): 139153872

約数和(自身を除く): 60254121

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 103, 147, 189, 193, 309, 441, 567, 579, 721, 927, 1323, 1351, 1737, 2163, 2781, 3969, 4053, 5047, 5211, 6489, 8343, 9457, 12159, 15141, 15633, 19467, 19879, 28371, 36477, 45423, 58401, 59637, 85113, 109431, 136269, 139153, 178911, 255339, 408807, 417459, 536733, 766017, 974071, 1252377, 1610199, 2922213, 3757131, 8766639, 11271393, 26299917, 78899751]

約数ペア:

[(1, 78899751), (3, 26299917), (7, 11271393), (9, 8766639), (21, 3757131), (27, 2922213), (49, 1610199), (63, 1252377), (81, 974071), (103, 766017), (147, 536733), (189, 417459), (193, 408807), (309, 255339), (441, 178911), (567, 139153), (579, 136269), (721, 109431), (927, 85113), (1323, 59637), (1351, 58401), (1737, 45423), (2163, 36477), (2781, 28371), (3969, 19879), (4053, 19467), (5047, 15633), (5211, 15141), (6489, 12159), (8343, 9457)]