20968563

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2175

約数の個数: 32

約数和(自身を含む): 35684352

約数和(自身を除く): 14715789

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 2111, 3311, 6333, 9933, 14777, 23221, 44331, 69663, 90773, 162547, 272319, 487641, 635411, 998503, 1906233, 2995509, 6989521, 20968563]

約数ペア:

[(1, 20968563), (3, 6989521), (7, 2995509), (11, 1906233), (21, 998503), (33, 635411), (43, 487641), (77, 272319), (129, 162547), (231, 90773), (301, 69663), (473, 44331), (903, 23221), (1419, 14777), (2111, 9933), (3311, 6333)]