217057139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20897}}^1$

素因数の和:20974

約数の個数: 16

約数和(自身を含む): 252782208

約数和(自身を除く): 35725069

約数列:

[1, 13, 17, 47, 221, 611, 799, 10387, 20897, 271661, 355249, 982159, 4618237, 12768067, 16696703, 217057139]

約数ペア:

[(1, 217057139), (13, 16696703), (17, 12768067), (47, 4618237), (221, 982159), (611, 355249), (799, 271661), (10387, 20897)]