201890781

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{1571}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 296730720

約数和(自身を除く): 94839939

約数列:

[1, 3, 9, 109, 131, 327, 393, 981, 1179, 1571, 4713, 14139, 14279, 42837, 128511, 171239, 205801, 513717, 617403, 1541151, 1852209, 22432309, 67296927, 201890781]

約数ペア:

[(1, 201890781), (3, 67296927), (9, 22432309), (109, 1852209), (131, 1541151), (327, 617403), (393, 513717), (981, 205801), (1179, 171239), (1571, 128511), (4713, 42837), (14139, 14279)]