21000230

素因数分解:

$2^1\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{1543}}^1$

素因数の和:2911

約数の個数: 16

約数和(自身を含む): 37852704

約数和(自身を除く): 16852474

約数列:

[1, 2, 5, 10, 1361, 1543, 2722, 3086, 6805, 7715, 13610, 15430, 2100023, 4200046, 10500115, 21000230]

約数ペア:

[(1, 21000230), (2, 10500115), (5, 4200046), (10, 2100023), (1361, 15430), (1543, 13610), (2722, 7715), (3086, 6805)]