205122939

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1\times {\mathrm{647}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 323813376

約数和(自身を除く): 118690437

約数列:

[1, 3, 7, 21, 31, 93, 217, 487, 647, 651, 1461, 1941, 3409, 4529, 10227, 13587, 15097, 20057, 45291, 60171, 105679, 140399, 315089, 317037, 421197, 945267, 2205623, 6616869, 9767759, 29303277, 68374313, 205122939]

約数ペア:

[(1, 205122939), (3, 68374313), (7, 29303277), (21, 9767759), (31, 6616869), (93, 2205623), (217, 945267), (487, 421197), (647, 317037), (651, 315089), (1461, 140399), (1941, 105679), (3409, 60171), (4529, 45291), (10227, 20057), (13587, 15097)]