213479215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{2887}}^1$

素因数の和:3558

約数の個数: 16

約数和(自身を含む): 267821568

約数和(自身を除く): 54342353

約数列:

[1, 5, 23, 115, 643, 2887, 3215, 14435, 14789, 66401, 73945, 332005, 1856341, 9281705, 42695843, 213479215]

約数ペア:

[(1, 213479215), (5, 42695843), (23, 9281705), (115, 1856341), (643, 332005), (2887, 73945), (3215, 66401), (14435, 14789)]