18989840021

素因数分解:

${\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{738301}}^1$

素因数の和:738424

約数の個数: 12

約数和(自身を含む): 20399284260

約数和(自身を除く): 1409444239

約数列:

[1, 17, 89, 289, 1513, 25721, 738301, 12551117, 65708789, 213368989, 1117049413, 18989840021]

約数ペア:

[(1, 18989840021), (17, 1117049413), (89, 213368989), (289, 65708789), (1513, 12551117), (25721, 738301)]