247688637

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{250951}}^1$

素因数の和:251008

約数の個数: 16

約数和(自身を含む): 385462272

約数和(自身を除く): 137773635

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 250951, 752853, 1756657, 5269971, 11794697, 35384091, 82562879, 247688637]

約数ペア:

[(1, 247688637), (3, 82562879), (7, 35384091), (21, 11794697), (47, 5269971), (141, 1756657), (329, 752853), (987, 250951)]