19873007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4231}}^1$

素因数の和:4310

約数の個数: 16

約数和(自身を含む): 25188864

約数和(自身を除く): 5315857

約数列:

[1, 7, 11, 61, 77, 427, 671, 4231, 4697, 29617, 46541, 258091, 325787, 1806637, 2839001, 19873007]

約数ペア:

[(1, 19873007), (7, 2839001), (11, 1806637), (61, 325787), (77, 258091), (427, 46541), (671, 29617), (4231, 4697)]