20728166

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2393}}^1$

素因数の和:2527

約数の個数: 16

約数和(自身を含む): 32060448

約数和(自身を除く): 11332282

約数列:

[1, 2, 61, 71, 122, 142, 2393, 4331, 4786, 8662, 145973, 169903, 291946, 339806, 10364083, 20728166]

約数ペア:

[(1, 20728166), (2, 10364083), (61, 339806), (71, 291946), (122, 169903), (142, 145973), (2393, 8662), (4331, 4786)]