21290633

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5441}}^1$

素因数の和:5504

約数の個数: 16

約数和(自身を含む): 26818176

約数和(自身を除く): 5527543

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5441, 38087, 70733, 233963, 495131, 1637741, 3041519, 21290633]

約数ペア:

[(1, 21290633), (7, 3041519), (13, 1637741), (43, 495131), (91, 233963), (301, 70733), (559, 38087), (3913, 5441)]