55780257

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{75277}}^1$

素因数の和:75312

約数の個数: 16

約数和(自身を含む): 84311360

約数和(自身を除く): 28531103

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 75277, 225831, 978601, 1430263, 2935803, 4290789, 18593419, 55780257]

約数ペア:

[(1, 55780257), (3, 18593419), (13, 4290789), (19, 2935803), (39, 1430263), (57, 978601), (247, 225831), (741, 75277)]