21881973

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 29818880

約数和(自身を除く): 7936907

約数列:

[1, 3, 79, 127, 237, 381, 727, 2181, 10033, 30099, 57433, 92329, 172299, 276987, 7293991, 21881973]

約数ペア:

[(1, 21881973), (3, 7293991), (79, 276987), (127, 172299), (237, 92329), (381, 57433), (727, 30099), (2181, 10033)]