21774767

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^2$

素因数の和:315

約数の個数: 18

約数和(自身を含む): 26622648

約数和(自身を除く): 4847881

約数列:

[1, 7, 23, 49, 139, 161, 973, 1127, 3197, 6811, 19321, 22379, 135247, 156653, 444383, 946729, 3110681, 21774767]

約数ペア:

[(1, 21774767), (7, 3110681), (23, 946729), (49, 444383), (139, 156653), (161, 135247), (973, 22379), (1127, 19321), (3197, 6811)]