42720418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53003}}^1$

素因数の和:53049

約数の個数: 16

約数和(自身を含む): 71237376

約数和(自身を除く): 28516958

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 53003, 106006, 689039, 1378078, 1643093, 3286186, 21360209, 42720418]

約数ペア:

[(1, 42720418), (2, 21360209), (13, 3286186), (26, 1643093), (31, 1378078), (62, 689039), (403, 106006), (806, 53003)]