217720349

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{5903}}^1$

素因数の和:6400

約数の個数: 16

約数和(自身を含む): 272056320

約数和(自身を除く): 54335971

約数列:

[1, 7, 11, 77, 479, 3353, 5269, 5903, 36883, 41321, 64933, 454531, 2827537, 19792759, 31102907, 217720349]

約数ペア:

[(1, 217720349), (7, 31102907), (11, 19792759), (77, 2827537), (479, 454531), (3353, 64933), (5269, 41321), (5903, 36883)]