21512986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22741}}^1$

素因数の和:22797

約数の個数: 16

約数和(自身を含む): 36023328

約数和(自身を除く): 14510342

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22741, 45482, 250151, 500302, 977863, 1955726, 10756493, 21512986]

約数ペア:

[(1, 21512986), (2, 10756493), (11, 1955726), (22, 977863), (43, 500302), (86, 250151), (473, 45482), (946, 22741)]