21243026

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79861}}^1$

素因数の和:79889

約数の個数: 16

約数和(自身を含む): 38333760

約数和(自身を除く): 17090734

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79861, 159722, 559027, 1118054, 1517359, 3034718, 10621513, 21243026]

約数ペア:

[(1, 21243026), (2, 10621513), (7, 3034718), (14, 1517359), (19, 1118054), (38, 559027), (133, 159722), (266, 79861)]