639730047

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1\times {\mathrm{607}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 943810560

約数和(自身を除く): 304080513

約数列:

[1, 3, 11, 33, 109, 293, 327, 607, 879, 1199, 1821, 3223, 3597, 6677, 9669, 20031, 31937, 66163, 95811, 177851, 198489, 351307, 533553, 727793, 1053921, 1956361, 2183379, 5869083, 19385759, 58157277, 213243349, 639730047]

約数ペア:

[(1, 639730047), (3, 213243349), (11, 58157277), (33, 19385759), (109, 5869083), (293, 2183379), (327, 1956361), (607, 1053921), (879, 727793), (1199, 533553), (1821, 351307), (3223, 198489), (3597, 177851), (6677, 95811), (9669, 66163), (20031, 31937)]