20981192

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24061}}^1$

素因数の和:24176

約数の個数: 16

約数和(自身を含む): 39702300

約数和(自身を除く): 18721108

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24061, 48122, 96244, 192488, 2622649, 5245298, 10490596, 20981192]

約数ペア:

[(1, 20981192), (2, 10490596), (4, 5245298), (8, 2622649), (109, 192488), (218, 96244), (436, 48122), (872, 24061)]