19491171

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1979}}^1$

素因数の和:2063

約数の個数: 24

約数和(自身を含む): 30697920

約数和(自身を除く): 11206749

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 1979, 3283, 5937, 9849, 13853, 41559, 96971, 132593, 290913, 397779, 928151, 2784453, 6497057, 19491171]

約数ペア:

[(1, 19491171), (3, 6497057), (7, 2784453), (21, 928151), (49, 397779), (67, 290913), (147, 132593), (201, 96971), (469, 41559), (1407, 13853), (1979, 9849), (3283, 5937)]