21499643

素因数分解:

${\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:619

約数の個数: 16

約数和(自身を含む): 24507360

約数和(自身を除く): 3007717

約数列:

[1, 11, 29, 121, 319, 557, 1331, 3509, 6127, 16153, 38599, 67397, 177683, 741367, 1954513, 21499643]

約数ペア:

[(1, 21499643), (11, 1954513), (29, 741367), (121, 177683), (319, 67397), (557, 38599), (1331, 16153), (3509, 6127)]