64905903

素因数分解:

$3^2\times {\mathrm{109}}^2\times {\mathrm{607}}^1$

素因数の和:831

約数の個数: 18

約数和(自身を含む): 94776864

約数和(自身を除く): 29870961

約数列:

[1, 3, 9, 109, 327, 607, 981, 1821, 5463, 11881, 35643, 66163, 106929, 198489, 595467, 7211767, 21635301, 64905903]

約数ペア:

[(1, 64905903), (3, 21635301), (9, 7211767), (109, 595467), (327, 198489), (607, 106929), (981, 66163), (1821, 35643), (5463, 11881)]