20802978

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{165103}}^1$

素因数の和:165118

約数の個数: 24

約数和(自身を含む): 51512448

約数和(自身を除く): 30709470

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 165103, 330206, 495309, 990618, 1155721, 1485927, 2311442, 2971854, 3467163, 6934326, 10401489, 20802978]

約数ペア:

[(1, 20802978), (2, 10401489), (3, 6934326), (6, 3467163), (7, 2971854), (9, 2311442), (14, 1485927), (18, 1155721), (21, 990618), (42, 495309), (63, 330206), (126, 165103)]