20171587923

素因数分解:

$3^3\times {\mathrm{1531}}^1\times {\mathrm{487979}}^1$

素因数の和:489519

約数の個数: 16

約数和(自身を含む): 29903414400

約数和(自身を除く): 9731826477

約数列:

[1, 3, 9, 27, 1531, 4593, 13779, 41337, 487979, 1463937, 4391811, 13175433, 747095849, 2241287547, 6723862641, 20171587923]

約数ペア:

[(1, 20171587923), (3, 6723862641), (9, 2241287547), (27, 747095849), (1531, 13175433), (4593, 4391811), (13779, 1463937), (41337, 487979)]