19794874

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:702

約数の個数: 24

約数和(自身を含む): 32907924

約数和(自身を除く): 13113050

約数列:

[1, 2, 11, 22, 121, 157, 242, 314, 521, 1042, 1727, 3454, 5731, 11462, 18997, 37994, 63041, 81797, 126082, 163594, 899767, 1799534, 9897437, 19794874]

約数ペア:

[(1, 19794874), (2, 9897437), (11, 1799534), (22, 899767), (121, 163594), (157, 126082), (242, 81797), (314, 63041), (521, 37994), (1042, 18997), (1727, 11462), (3454, 5731)]