21858351

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 29712384

約数和(自身を除く): 7854033

約数列:

[1, 3, 103, 127, 309, 381, 557, 1671, 13081, 39243, 57371, 70739, 172113, 212217, 7286117, 21858351]

約数ペア:

[(1, 21858351), (3, 7286117), (103, 212217), (127, 172113), (309, 70739), (381, 57371), (557, 39243), (1671, 13081)]