28814891

素因数分解:

$7^2\times {\mathrm{67}}^2\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 18

約数和(自身を含む): 34286868

約数和(自身を除く): 5471977

約数列:

[1, 7, 49, 67, 131, 469, 917, 3283, 4489, 6419, 8777, 31423, 61439, 219961, 430073, 588059, 4116413, 28814891]

約数ペア:

[(1, 28814891), (7, 4116413), (49, 588059), (67, 430073), (131, 219961), (469, 61439), (917, 31423), (3283, 8777), (4489, 6419)]