21168763

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11953}}^1$

素因数の和:11994

約数の個数: 16

約数和(自身を含む): 27542016

約数和(自身を除く): 6373253

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11953, 83671, 131483, 274919, 920381, 1924433, 3024109, 21168763]

約数ペア:

[(1, 21168763), (7, 3024109), (11, 1924433), (23, 920381), (77, 274919), (161, 131483), (253, 83671), (1771, 11953)]