66963416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{643879}}^1$

素因数の和:643898

約数の個数: 16

約数和(自身を含む): 135214800

約数和(自身を除く): 68251384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 643879, 1287758, 2575516, 5151032, 8370427, 16740854, 33481708, 66963416]

約数ペア:

[(1, 66963416), (2, 33481708), (4, 16740854), (8, 8370427), (13, 5151032), (26, 2575516), (52, 1287758), (104, 643879)]