21306726

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{6263}}^1$

素因数の和:6287

約数の個数: 48

約数和(自身を含む): 54722304

約数和(自身を除く): 33415578

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 1134, 1701, 3402, 6263, 12526, 18789, 37578, 43841, 56367, 87682, 112734, 131523, 169101, 263046, 338202, 394569, 507303, 789138, 1014606, 1183707, 1521909, 2367414, 3043818, 3551121, 7102242, 10653363, 21306726]

約数ペア:

[(1, 21306726), (2, 10653363), (3, 7102242), (6, 3551121), (7, 3043818), (9, 2367414), (14, 1521909), (18, 1183707), (21, 1014606), (27, 789138), (42, 507303), (54, 394569), (63, 338202), (81, 263046), (126, 169101), (162, 131523), (189, 112734), (243, 87682), (378, 56367), (486, 43841), (567, 37578), (1134, 18789), (1701, 12526), (3402, 6263)]