21177541

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2273}}^1$

素因数の和:2313

約数の個数: 16

約数和(自身を含む): 26633088

約数和(自身を除く): 5455547

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2273, 9317, 15911, 25003, 175021, 275033, 1925231, 3025363, 21177541]

約数ペア:

[(1, 21177541), (7, 3025363), (11, 1925231), (77, 275033), (121, 175021), (847, 25003), (1331, 15911), (2273, 9317)]