28812321

素因数分解:

$3^3\times {\mathrm{269}}^1\times {\mathrm{3967}}^1$

素因数の和:4245

約数の個数: 16

約数和(自身を含む): 42854400

約数和(自身を除く): 14042079

約数列:

[1, 3, 9, 27, 269, 807, 2421, 3967, 7263, 11901, 35703, 107109, 1067123, 3201369, 9604107, 28812321]

約数ペア:

[(1, 28812321), (3, 9604107), (9, 3201369), (27, 1067123), (269, 107109), (807, 35703), (2421, 11901), (3967, 7263)]