2218167

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 3702816

約数和(自身を除く): 1484649

約数列:

[1, 3, 7, 9, 21, 63, 137, 257, 411, 771, 959, 1233, 1799, 2313, 2877, 5397, 8631, 16191, 35209, 105627, 246463, 316881, 739389, 2218167]

約数ペア:

[(1, 2218167), (3, 739389), (7, 316881), (9, 246463), (21, 105627), (63, 35209), (137, 16191), (257, 8631), (411, 5397), (771, 2877), (959, 2313), (1233, 1799)]