21569807

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1277}}^1$

素因数の和:1430

約数の個数: 16

約数和(自身を含む): 26173440

約数和(自身を除く): 4603633

約数列:

[1, 7, 19, 127, 133, 889, 1277, 2413, 8939, 16891, 24263, 162179, 169841, 1135253, 3081401, 21569807]

約数ペア:

[(1, 21569807), (7, 3081401), (19, 1135253), (127, 169841), (133, 162179), (889, 24263), (1277, 16891), (2413, 8939)]