21977263

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4679}}^1$

素因数の和:4758

約数の個数: 16

約数和(自身を含む): 27855360

約数和(自身を除く): 5878097

約数列:

[1, 7, 11, 61, 77, 427, 671, 4679, 4697, 32753, 51469, 285419, 360283, 1997933, 3139609, 21977263]

約数ペア:

[(1, 21977263), (7, 3139609), (11, 1997933), (61, 360283), (77, 285419), (427, 51469), (671, 32753), (4679, 4697)]