21779397

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{503}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 33493824

約数和(自身を除く): 11714427

約数列:

[1, 3, 9, 17, 51, 153, 283, 503, 849, 1509, 2547, 4527, 4811, 8551, 14433, 25653, 43299, 76959, 142349, 427047, 1281141, 2419933, 7259799, 21779397]

約数ペア:

[(1, 21779397), (3, 7259799), (9, 2419933), (17, 1281141), (51, 427047), (153, 142349), (283, 76959), (503, 43299), (849, 25653), (1509, 14433), (2547, 8551), (4527, 4811)]