18866879991

素因数分解:

$3^3\times {\mathrm{1321}}^1\times {\mathrm{528973}}^1$

素因数の和:530303

約数の個数: 16

約数和(自身を含む): 27972145120

約数和(自身を除く): 9105265129

約数列:

[1, 3, 9, 27, 1321, 3963, 11889, 35667, 528973, 1586919, 4760757, 14282271, 698773333, 2096319999, 6288959997, 18866879991]

約数ペア:

[(1, 18866879991), (3, 6288959997), (9, 2096319999), (27, 698773333), (1321, 14282271), (3963, 4760757), (11889, 1586919), (35667, 528973)]