20218737

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 34643840

約数和(自身を除く): 14425103

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 109, 121, 219, 231, 327, 363, 511, 763, 803, 847, 1199, 1533, 2289, 2409, 2541, 3597, 5621, 7957, 8393, 8833, 13189, 16863, 23871, 25179, 26499, 39567, 55699, 61831, 87527, 92323, 167097, 185493, 262581, 276969, 612689, 962797, 1838067, 2888391, 6739579, 20218737]

約数ペア:

[(1, 20218737), (3, 6739579), (7, 2888391), (11, 1838067), (21, 962797), (33, 612689), (73, 276969), (77, 262581), (109, 185493), (121, 167097), (219, 92323), (231, 87527), (327, 61831), (363, 55699), (511, 39567), (763, 26499), (803, 25179), (847, 23871), (1199, 16863), (1533, 13189), (2289, 8833), (2409, 8393), (2541, 7957), (3597, 5621)]