21000724728

素因数分解:

$2^3\times 3^1\times {\mathrm{2963}}^1\times {\mathrm{295319}}^1$

素因数の和:298291

約数の個数: 32

約数和(自身を含む): 52519708800

約数和(自身を除く): 31518984072

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 2963, 5926, 8889, 11852, 17778, 23704, 35556, 71112, 295319, 590638, 885957, 1181276, 1771914, 2362552, 3543828, 7087656, 875030197, 1750060394, 2625090591, 3500120788, 5250181182, 7000241576, 10500362364, 21000724728]

約数ペア:

[(1, 21000724728), (2, 10500362364), (3, 7000241576), (4, 5250181182), (6, 3500120788), (8, 2625090591), (12, 1750060394), (24, 875030197), (2963, 7087656), (5926, 3543828), (8889, 2362552), (11852, 1771914), (17778, 1181276), (23704, 885957), (35556, 590638), (71112, 295319)]