21284562

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272879}}^1$

素因数の和:272897

約数の個数: 16

約数和(自身を含む): 45843840

約数和(自身を除く): 24559278

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272879, 545758, 818637, 1637274, 3547427, 7094854, 10642281, 21284562]

約数ペア:

[(1, 21284562), (2, 10642281), (3, 7094854), (6, 3547427), (13, 1637274), (26, 818637), (39, 545758), (78, 272879)]