21564673

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2566847

約数列:

[1, 13, 37, 107, 419, 481, 1391, 3959, 5447, 15503, 44833, 51467, 201539, 582829, 1658821, 21564673]

約数ペア:

[(1, 21564673), (13, 1658821), (37, 582829), (107, 201539), (419, 51467), (481, 44833), (1391, 15503), (3959, 5447)]