216118245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{4889}}^1$

素因数の和:5325

約数の個数: 32

約数和(自身を含む): 396207360

約数和(自身を除く): 180089115

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 421, 1263, 2105, 2947, 4889, 6315, 8841, 14667, 14735, 24445, 34223, 44205, 73335, 102669, 171115, 513345, 2058269, 6174807, 10291345, 14407883, 30874035, 43223649, 72039415, 216118245]

約数ペア:

[(1, 216118245), (3, 72039415), (5, 43223649), (7, 30874035), (15, 14407883), (21, 10291345), (35, 6174807), (105, 2058269), (421, 513345), (1263, 171115), (2105, 102669), (2947, 73335), (4889, 44205), (6315, 34223), (8841, 24445), (14667, 14735)]