12920285

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19429}}^1$

素因数の和:19460

約数の個数: 16

約数和(自身を含む): 18652800

約数和(自身を除く): 5732515

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 19429, 97145, 136003, 369151, 680015, 1845755, 2584057, 12920285]

約数ペア:

[(1, 12920285), (5, 2584057), (7, 1845755), (19, 680015), (35, 369151), (95, 136003), (133, 97145), (665, 19429)]