208021233

素因数分解:

$3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{19013}}^1$

素因数の和:19544

約数の個数: 16

約数和(自身を含む): 317609856

約数和(自身を除く): 109588623

約数列:

[1, 3, 7, 21, 521, 1563, 3647, 10941, 19013, 57039, 133091, 399273, 9905773, 29717319, 69340411, 208021233]

約数ペア:

[(1, 208021233), (3, 69340411), (7, 29717319), (21, 9905773), (521, 399273), (1563, 133091), (3647, 57039), (10941, 19013)]