18909369

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4967}}^1$

素因数の和:5026

約数の個数: 20

約数和(自身を含む): 28854144

約数和(自身を除く): 9944775

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4967, 14901, 44703, 134109, 233449, 402327, 700347, 2101041, 6303123, 18909369]

約数ペア:

[(1, 18909369), (3, 6303123), (9, 2101041), (27, 700347), (47, 402327), (81, 233449), (141, 134109), (423, 44703), (1269, 14901), (3807, 4967)]