20979258

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2311}}^1$

素因数の和:2422

約数の個数: 32

約数和(自身を含む): 44945280

約数和(自身を除く): 23966022

約数列:

[1, 2, 3, 6, 17, 34, 51, 89, 102, 178, 267, 534, 1513, 2311, 3026, 4539, 4622, 6933, 9078, 13866, 39287, 78574, 117861, 205679, 235722, 411358, 617037, 1234074, 3496543, 6993086, 10489629, 20979258]

約数ペア:

[(1, 20979258), (2, 10489629), (3, 6993086), (6, 3496543), (17, 1234074), (34, 617037), (51, 411358), (89, 235722), (102, 205679), (178, 117861), (267, 78574), (534, 39287), (1513, 13866), (2311, 9078), (3026, 6933), (4539, 4622)]