21942738

素因数分解:

$2^1\times 3^4\times {\mathrm{135449}}^1$

素因数の和:135463

約数の個数: 20

約数和(自身を含む): 49168350

約数和(自身を除く): 27225612

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 135449, 270898, 406347, 812694, 1219041, 2438082, 3657123, 7314246, 10971369, 21942738]

約数ペア:

[(1, 21942738), (2, 10971369), (3, 7314246), (6, 3657123), (9, 2438082), (18, 1219041), (27, 812694), (54, 406347), (81, 270898), (162, 135449)]