20974902

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{268909}}^1$

素因数の和:268927

約数の個数: 16

約数和(自身を含む): 45176880

約数和(自身を除く): 24201978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 268909, 537818, 806727, 1613454, 3495817, 6991634, 10487451, 20974902]

約数ペア:

[(1, 20974902), (2, 10487451), (3, 6991634), (6, 3495817), (13, 1613454), (26, 806727), (39, 537818), (78, 268909)]