21082229

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{541}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 25495680

約数和(自身を除く): 4413451

約数列:

[1, 7, 19, 133, 293, 541, 2051, 3787, 5567, 10279, 38969, 71953, 158513, 1109591, 3011747, 21082229]

約数ペア:

[(1, 21082229), (7, 3011747), (19, 1109591), (133, 158513), (293, 71953), (541, 38969), (2051, 10279), (3787, 5567)]