31720401

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{199}}^2$

素因数の和:493

約数の個数: 18

約数和(自身を含む): 46567170

約数和(自身を除く): 14846769

約数列:

[1, 3, 9, 89, 199, 267, 597, 801, 1791, 17711, 39601, 53133, 118803, 159399, 356409, 3524489, 10573467, 31720401]

約数ペア:

[(1, 31720401), (3, 10573467), (9, 3524489), (89, 356409), (199, 159399), (267, 118803), (597, 53133), (801, 39601), (1791, 17711)]