20519571

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{461}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 28230048

約数和(自身を除く): 7710477

約数列:

[1, 3, 37, 111, 401, 461, 1203, 1383, 14837, 17057, 44511, 51171, 184861, 554583, 6839857, 20519571]

約数ペア:

[(1, 20519571), (3, 6839857), (37, 554583), (111, 184861), (401, 51171), (461, 44511), (1203, 17057), (1383, 14837)]