19874746

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2229

約数の個数: 16

約数和(自身を含む): 30697920

約数和(自身を除く): 10823174

約数列:

[1, 2, 67, 71, 134, 142, 2089, 4178, 4757, 9514, 139963, 148319, 279926, 296638, 9937373, 19874746]

約数ペア:

[(1, 19874746), (2, 9937373), (67, 296638), (71, 279926), (134, 148319), (142, 139963), (2089, 9514), (4178, 4757)]