991881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 1606176

約数和(自身を除く): 614295

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 233, 387, 473, 699, 1419, 2097, 2563, 4257, 7689, 10019, 23067, 30057, 90171, 110209, 330627, 991881]

約数ペア:

[(1, 991881), (3, 330627), (9, 110209), (11, 90171), (33, 30057), (43, 23067), (99, 10019), (129, 7689), (233, 4257), (387, 2563), (473, 2097), (699, 1419)]