7921719

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{7523}}^1$

素因数の和:7548

約数の個数: 20

約数和(自身を含む): 12745656

約数和(自身を除く): 4823937

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 7523, 22569, 67707, 97799, 203121, 293397, 609363, 880191, 2640573, 7921719]

約数ペア:

[(1, 7921719), (3, 2640573), (9, 880191), (13, 609363), (27, 293397), (39, 203121), (81, 97799), (117, 67707), (351, 22569), (1053, 7523)]