21274545

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{48907}}^1$

素因数の和:48944

約数の個数: 16

約数和(自身を含む): 35213760

約数和(自身を除く): 13939215

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 48907, 146721, 244535, 733605, 1418303, 4254909, 7091515, 21274545]

約数ペア:

[(1, 21274545), (3, 7091515), (5, 4254909), (15, 1418303), (29, 733605), (87, 244535), (145, 146721), (435, 48907)]