647278317

素因数分解:

$3^3\times 7^1\times {\mathrm{3424753}}^1$

素因数の和:3424769

約数の個数: 16

約数和(自身を含む): 1095921280

約数和(自身を除く): 448642963

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 3424753, 10274259, 23973271, 30822777, 71919813, 92468331, 215759439, 647278317]

約数ペア:

[(1, 647278317), (3, 215759439), (7, 92468331), (9, 71919813), (21, 30822777), (27, 23973271), (63, 10274259), (189, 3424753)]