521989139

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{6143}}^1$

素因数の和:6410

約数の個数: 16

約数和(自身を含む): 609484800

約数和(自身を除く): 87495661

約数列:

[1, 7, 61, 199, 427, 1393, 6143, 12139, 43001, 84973, 374723, 1222457, 2623061, 8557199, 74569877, 521989139]

約数ペア:

[(1, 521989139), (7, 74569877), (61, 8557199), (199, 2623061), (427, 1222457), (1393, 374723), (6143, 84973), (12139, 43001)]