21085791

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 28673280

約数和(自身を除く): 7587489

約数列:

[1, 3, 89, 151, 267, 453, 523, 1569, 13439, 40317, 46547, 78973, 139641, 236919, 7028597, 21085791]

約数ペア:

[(1, 21085791), (3, 7028597), (89, 236919), (151, 139641), (267, 78973), (453, 46547), (523, 40317), (1569, 13439)]