28479423

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 46103040

約数和(自身を除く): 17623617

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 521, 959, 1563, 2603, 2877, 3647, 7809, 9899, 10941, 18221, 29697, 54663, 69293, 71377, 207879, 214131, 499639, 1356163, 1498917, 4068489, 9493141, 28479423]

約数ペア:

[(1, 28479423), (3, 9493141), (7, 4068489), (19, 1498917), (21, 1356163), (57, 499639), (133, 214131), (137, 207879), (399, 71377), (411, 69293), (521, 54663), (959, 29697), (1563, 18221), (2603, 10941), (2877, 9899), (3647, 7809)]