261390003

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{98009}}^1$

素因数の和:98146

約数の個数: 16

約数和(自身を含む): 401448960

約数和(自身を除く): 140058957

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 98009, 294027, 686063, 2058189, 12447143, 37341429, 87130001, 261390003]

約数ペア:

[(1, 261390003), (3, 87130001), (7, 37341429), (21, 12447143), (127, 2058189), (381, 686063), (889, 294027), (2667, 98009)]