21646378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1987}}^1$

素因数の和:2421

約数の個数: 16

約数和(自身を含む): 35068320

約数和(自身を除く): 13421942

約数列:

[1, 2, 13, 26, 419, 838, 1987, 3974, 5447, 10894, 25831, 51662, 832553, 1665106, 10823189, 21646378]

約数ペア:

[(1, 21646378), (2, 10823189), (13, 1665106), (26, 832553), (419, 51662), (838, 25831), (1987, 10894), (3974, 5447)]