28217763

素因数分解:

$3^2\times 7^1\times {\mathrm{447901}}^1$

素因数の和:447914

約数の個数: 12

約数和(自身を含む): 46581808

約数和(自身を除く): 18364045

約数列:

[1, 3, 7, 9, 21, 63, 447901, 1343703, 3135307, 4031109, 9405921, 28217763]

約数ペア:

[(1, 28217763), (3, 9405921), (7, 4031109), (9, 3135307), (21, 1343703), (63, 447901)]