21282219

素因数分解:

$3^2\times 7^2\times {\mathrm{48259}}^1$

素因数の和:48279

約数の個数: 18

約数和(自身を含む): 35760660

約数和(自身を除く): 14478441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 48259, 144777, 337813, 434331, 1013439, 2364691, 3040317, 7094073, 21282219]

約数ペア:

[(1, 21282219), (3, 7094073), (7, 3040317), (9, 2364691), (21, 1013439), (49, 434331), (63, 337813), (147, 144777), (441, 48259)]