21237502

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74257}}^1$

素因数の和:74283

約数の個数: 16

約数和(自身を含む): 37426032

約数和(自身を除く): 16188530

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74257, 148514, 816827, 965341, 1633654, 1930682, 10618751, 21237502]

約数ペア:

[(1, 21237502), (2, 10618751), (11, 1930682), (13, 1633654), (22, 965341), (26, 816827), (143, 148514), (286, 74257)]