28013874189

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70210211}}^1$

素因数の和:70210240

約数の個数: 16

約数和(自身を含む): 44934535680

約数和(自身を除く): 16920661491

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70210211, 210630633, 491471477, 1333994009, 1474414431, 4001982027, 9337958063, 28013874189]

約数ペア:

[(1, 28013874189), (3, 9337958063), (7, 4001982027), (19, 1474414431), (21, 1333994009), (57, 491471477), (133, 210630633), (399, 70210211)]