28263123

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2971}}^1$

素因数の和:3135

約数の個数: 24

約数和(自身を含む): 46981376

約数和(自身を除く): 18718253

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2971, 3171, 8913, 9513, 20797, 26739, 62391, 187173, 448621, 1345863, 3140347, 4037589, 9421041, 28263123]

約数ペア:

[(1, 28263123), (3, 9421041), (7, 4037589), (9, 3140347), (21, 1345863), (63, 448621), (151, 187173), (453, 62391), (1057, 26739), (1359, 20797), (2971, 9513), (3171, 8913)]