17904321

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4703}}^1$

素因数の和:4762

約数の個数: 20

約数和(自身を含む): 27320832

約数和(自身を除く): 9416511

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4703, 14109, 42327, 126981, 221041, 380943, 663123, 1989369, 5968107, 17904321]

約数ペア:

[(1, 17904321), (3, 5968107), (9, 1989369), (27, 663123), (47, 380943), (81, 221041), (141, 126981), (423, 42327), (1269, 14109), (3807, 4703)]