9990921

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1976

約数の個数: 16

約数和(自身を含む): 13970880

約数和(自身を除く): 3979959

約数列:

[1, 3, 41, 43, 123, 129, 1763, 1889, 5289, 5667, 77449, 81227, 232347, 243681, 3330307, 9990921]

約数ペア:

[(1, 9990921), (3, 3330307), (41, 243681), (43, 232347), (123, 81227), (129, 77449), (1763, 5667), (1889, 5289)]