21788286

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{279337}}^1$

素因数の和:279355

約数の個数: 16

約数和(自身を含む): 46928784

約数和(自身を除く): 25140498

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 279337, 558674, 838011, 1676022, 3631381, 7262762, 10894143, 21788286]

約数ペア:

[(1, 21788286), (2, 10894143), (3, 7262762), (6, 3631381), (13, 1676022), (26, 838011), (39, 558674), (78, 279337)]