20570823

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25117}}^1$

素因数の和:25143

約数の個数: 24

約数和(自身を含む): 36571808

約数和(自身を除く): 16000985

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25117, 75351, 175819, 226053, 326521, 527457, 979563, 1582371, 2285647, 2938689, 6856941, 20570823]

約数ペア:

[(1, 20570823), (3, 6856941), (7, 2938689), (9, 2285647), (13, 1582371), (21, 979563), (39, 527457), (63, 326521), (91, 226053), (117, 175819), (273, 75351), (819, 25117)]