1478007

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 20

約数和(自身を含む): 2247696

約数和(自身を除く): 769689

約数列:

[1, 3, 9, 27, 71, 81, 213, 257, 639, 771, 1917, 2313, 5751, 6939, 18247, 20817, 54741, 164223, 492669, 1478007]

約数ペア:

[(1, 1478007), (3, 492669), (9, 164223), (27, 54741), (71, 20817), (81, 18247), (213, 6939), (257, 5751), (639, 2313), (771, 1917)]