21806418

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{84521}}^1$

素因数の和:84569

約数の個数: 16

約数和(自身を含む): 44627616

約数和(自身を除く): 22821198

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 84521, 169042, 253563, 507126, 3634403, 7268806, 10903209, 21806418]

約数ペア:

[(1, 21806418), (2, 10903209), (3, 7268806), (6, 3634403), (43, 507126), (86, 253563), (129, 169042), (258, 84521)]