21849438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280121}}^1$

素因数の和:280139

約数の個数: 16

約数和(自身を含む): 47060496

約数和(自身を除く): 25211058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280121, 560242, 840363, 1680726, 3641573, 7283146, 10924719, 21849438]

約数ペア:

[(1, 21849438), (2, 10924719), (3, 7283146), (6, 3641573), (13, 1680726), (26, 840363), (39, 560242), (78, 280121)]