21208434

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{271903}}^1$

素因数の和:271921

約数の個数: 16

約数和(自身を含む): 45679872

約数和(自身を除く): 24471438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 271903, 543806, 815709, 1631418, 3534739, 7069478, 10604217, 21208434]

約数ペア:

[(1, 21208434), (2, 10604217), (3, 7069478), (6, 3534739), (13, 1631418), (26, 815709), (39, 543806), (78, 271903)]