2172710981

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1\times {\mathrm{5039}}^1$

素因数の和:7064

約数の個数: 16

約数和(自身を含む): 2564997120

約数和(自身を除く): 392286139

約数列:

[1, 7, 31, 217, 1987, 5039, 13909, 35273, 61597, 156209, 431179, 1093463, 10012493, 70087451, 310387283, 2172710981]

約数ペア:

[(1, 2172710981), (7, 310387283), (31, 70087451), (217, 10012493), (1987, 1093463), (5039, 431179), (13909, 156209), (35273, 61597)]