20965857

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1201}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 31905888

約数和(自身を除く): 10940031

約数列:

[1, 3, 11, 23, 33, 69, 253, 529, 759, 1201, 1587, 3603, 5819, 13211, 17457, 27623, 39633, 82869, 303853, 635329, 911559, 1905987, 6988619, 20965857]

約数ペア:

[(1, 20965857), (3, 6988619), (11, 1905987), (23, 911559), (33, 635329), (69, 303853), (253, 82869), (529, 39633), (759, 27623), (1201, 17457), (1587, 13211), (3603, 5819)]