21580184

素因数分解:

$2^3\times {\mathrm{1097}}^1\times {\mathrm{2459}}^1$

素因数の和:3562

約数の個数: 16

約数和(自身を含む): 40516200

約数和(自身を除く): 18936016

約数列:

[1, 2, 4, 8, 1097, 2194, 2459, 4388, 4918, 8776, 9836, 19672, 2697523, 5395046, 10790092, 21580184]

約数ペア:

[(1, 21580184), (2, 10790092), (4, 5395046), (8, 2697523), (1097, 19672), (2194, 9836), (2459, 8776), (4388, 4918)]