1909971

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 3307824

約数和(自身を除く): 1397853

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 71, 147, 183, 213, 427, 441, 497, 549, 639, 1281, 1491, 2989, 3479, 3843, 4331, 4473, 8967, 10437, 12993, 26901, 30317, 31311, 38979, 90951, 212219, 272853, 636657, 1909971]

約数ペア:

[(1, 1909971), (3, 636657), (7, 272853), (9, 212219), (21, 90951), (49, 38979), (61, 31311), (63, 30317), (71, 26901), (147, 12993), (183, 10437), (213, 8967), (427, 4473), (441, 4331), (497, 3843), (549, 3479), (639, 2989), (1281, 1491)]