13987883

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{3137}}^1$

素因数の和:3171

約数の個数: 16

約数和(自身を含む): 17572800

約数和(自身を除く): 3584917

約数列:

[1, 7, 13, 49, 91, 343, 637, 3137, 4459, 21959, 40781, 153713, 285467, 1075991, 1998269, 13987883]

約数ペア:

[(1, 13987883), (7, 1998269), (13, 1075991), (49, 285467), (91, 153713), (343, 40781), (637, 21959), (3137, 4459)]