30781233

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15761}}^1$

素因数の和:15805

約数の個数: 24

約数和(自身を含む): 52455936

約数和(自身を除く): 21674703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 15761, 47283, 110327, 141849, 330981, 488591, 992943, 1465773, 3420137, 4397319, 10260411, 30781233]

約数ペア:

[(1, 30781233), (3, 10260411), (7, 4397319), (9, 3420137), (21, 1465773), (31, 992943), (63, 488591), (93, 330981), (217, 141849), (279, 110327), (651, 47283), (1953, 15761)]