21842886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280037}}^1$

素因数の和:280055

約数の個数: 16

約数和(自身を含む): 47046384

約数和(自身を除く): 25203498

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280037, 560074, 840111, 1680222, 3640481, 7280962, 10921443, 21842886]

約数ペア:

[(1, 21842886), (2, 10921443), (3, 7280962), (6, 3640481), (13, 1680222), (26, 840111), (39, 560074), (78, 280037)]