39891987

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 61335360

約数和(自身を除く): 21443373

約数列:

[1, 3, 9, 27, 53, 61, 159, 183, 457, 477, 549, 1371, 1431, 1647, 3233, 4113, 9699, 12339, 24221, 27877, 29097, 72663, 83631, 87291, 217989, 250893, 653967, 752679, 1477481, 4432443, 13297329, 39891987]

約数ペア:

[(1, 39891987), (3, 13297329), (9, 4432443), (27, 1477481), (53, 752679), (61, 653967), (159, 250893), (183, 217989), (457, 87291), (477, 83631), (549, 72663), (1371, 29097), (1431, 27877), (1647, 24221), (3233, 12339), (4113, 9699)]