21997966

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8863}}^1$

素因数の和:8955

約数の個数: 16

約数和(自身を含む): 35420544

約数和(自身を除く): 13422578

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 8863, 17726, 150671, 301342, 646999, 1293998, 10998983, 21997966]

約数ペア:

[(1, 21997966), (2, 10998983), (17, 1293998), (34, 646999), (73, 301342), (146, 150671), (1241, 17726), (2482, 8863)]