21910902

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280909}}^1$

素因数の和:280927

約数の個数: 16

約数和(自身を含む): 47192880

約数和(自身を除く): 25281978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280909, 561818, 842727, 1685454, 3651817, 7303634, 10955451, 21910902]

約数ペア:

[(1, 21910902), (2, 10955451), (3, 7303634), (6, 3651817), (13, 1685454), (26, 842727), (39, 561818), (78, 280909)]