21851551141

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2250649}}^1$

素因数の和:2250748

約数の個数: 16

約数和(自身を含む): 26647696000

約数和(自身を除く): 4796144859

約数列:

[1, 7, 19, 73, 133, 511, 1387, 9709, 2250649, 15754543, 42762331, 164297377, 299336317, 1150081639, 3121650163, 21851551141]

約数ペア:

[(1, 21851551141), (7, 3121650163), (19, 1150081639), (73, 299336317), (133, 164297377), (511, 42762331), (1387, 15754543), (9709, 2250649)]