19866226

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4513}}^1$

素因数の和:4617

約数の個数: 16

約数和(自身を含む): 31200768

約数和(自身を除く): 11334542

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4513, 9026, 139903, 279806, 320423, 640846, 9933113, 19866226]

約数ペア:

[(1, 19866226), (2, 9933113), (31, 640846), (62, 320423), (71, 279806), (142, 139903), (2201, 9026), (4402, 4513)]