13281919

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 15855616

約数和(自身を除く): 2573697

約数列:

[1, 7, 31, 97, 217, 631, 679, 3007, 4417, 19561, 21049, 61207, 136927, 428449, 1897417, 13281919]

約数ペア:

[(1, 13281919), (7, 1897417), (31, 428449), (97, 136927), (217, 61207), (631, 21049), (679, 19561), (3007, 4417)]