21916120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28837}}^1$

素因数の和:28867

約数の個数: 32

約数和(自身を含む): 51908400

約数和(自身を除く): 29992280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28837, 57674, 115348, 144185, 230696, 288370, 547903, 576740, 1095806, 1153480, 2191612, 2739515, 4383224, 5479030, 10958060, 21916120]

約数ペア:

[(1, 21916120), (2, 10958060), (4, 5479030), (5, 4383224), (8, 2739515), (10, 2191612), (19, 1153480), (20, 1095806), (38, 576740), (40, 547903), (76, 288370), (95, 230696), (152, 144185), (190, 115348), (380, 57674), (760, 28837)]