20517104

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 41902080

約数和(自身を除く): 21384976

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 127, 184, 254, 368, 439, 508, 878, 1016, 1756, 2032, 2921, 3512, 5842, 7024, 10097, 11684, 20194, 23368, 40388, 46736, 55753, 80776, 111506, 161552, 223012, 446024, 892048, 1282319, 2564638, 5129276, 10258552, 20517104]

約数ペア:

[(1, 20517104), (2, 10258552), (4, 5129276), (8, 2564638), (16, 1282319), (23, 892048), (46, 446024), (92, 223012), (127, 161552), (184, 111506), (254, 80776), (368, 55753), (439, 46736), (508, 40388), (878, 23368), (1016, 20194), (1756, 11684), (2032, 10097), (2921, 7024), (3512, 5842)]