21609080

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28433}}^1$

素因数の和:28463

約数の個数: 32

約数和(自身を含む): 51181200

約数和(自身を除く): 29572120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28433, 56866, 113732, 142165, 227464, 284330, 540227, 568660, 1080454, 1137320, 2160908, 2701135, 4321816, 5402270, 10804540, 21609080]

約数ペア:

[(1, 21609080), (2, 10804540), (4, 5402270), (5, 4321816), (8, 2701135), (10, 2160908), (19, 1137320), (20, 1080454), (38, 568660), (40, 540227), (76, 284330), (95, 227464), (152, 142165), (190, 113732), (380, 56866), (760, 28433)]