31393431

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 46683936

約数和(自身を除く): 15290505

約数列:

[1, 3, 9, 71, 73, 213, 219, 639, 657, 673, 2019, 5183, 6057, 15549, 46647, 47783, 49129, 143349, 147387, 430047, 442161, 3488159, 10464477, 31393431]

約数ペア:

[(1, 31393431), (3, 10464477), (9, 3488159), (71, 442161), (73, 430047), (213, 147387), (219, 143349), (639, 49129), (657, 47783), (673, 46647), (2019, 15549), (5183, 6057)]