21307846

素因数分解:

$2^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 37800000

約数和(自身を除く): 16492154

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 343, 349, 623, 686, 698, 1246, 2443, 4361, 4886, 8722, 17101, 30527, 31061, 34202, 61054, 62122, 119707, 217427, 239414, 434854, 1521989, 3043978, 10653923, 21307846]

約数ペア:

[(1, 21307846), (2, 10653923), (7, 3043978), (14, 1521989), (49, 434854), (89, 239414), (98, 217427), (178, 119707), (343, 62122), (349, 61054), (623, 34202), (686, 31061), (698, 30527), (1246, 17101), (2443, 8722), (4361, 4886)]