21731254

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3559}}^1$

素因数の和:3675

約数の個数: 16

約数和(自身を含む): 33834240

約数和(自身を除く): 12102986

約数列:

[1, 2, 43, 71, 86, 142, 3053, 3559, 6106, 7118, 153037, 252689, 306074, 505378, 10865627, 21731254]

約数ペア:

[(1, 21731254), (2, 10865627), (43, 505378), (71, 306074), (86, 252689), (142, 153037), (3053, 7118), (3559, 6106)]