21605874

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67943}}^1$

素因数の和:68001

約数の個数: 16

約数和(自身を含む): 44027712

約数和(自身を除く): 22421838

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 67943, 135886, 203829, 407658, 3600979, 7201958, 10802937, 21605874]

約数ペア:

[(1, 21605874), (2, 10802937), (3, 7201958), (6, 3600979), (53, 407658), (106, 203829), (159, 135886), (318, 67943)]