21493862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1973}}^1$

素因数の和:2407

約数の個数: 16

約数和(自身を含む): 34821360

約数和(自身を除く): 13327498

約数列:

[1, 2, 13, 26, 419, 838, 1973, 3946, 5447, 10894, 25649, 51298, 826687, 1653374, 10746931, 21493862]

約数ペア:

[(1, 21493862), (2, 10746931), (13, 1653374), (26, 826687), (419, 51298), (838, 25649), (1973, 10894), (3946, 5447)]