21473439

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28979}}^1$

素因数の和:29014

約数の個数: 16

約数和(自身を含む): 32457600

約数和(自身を除く): 10984161

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28979, 86937, 376727, 550601, 1130181, 1651803, 7157813, 21473439]

約数ペア:

[(1, 21473439), (3, 7157813), (13, 1651803), (19, 1130181), (39, 550601), (57, 376727), (247, 86937), (741, 28979)]