20955147

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2770

約数の個数: 16

約数和(自身を含む): 29069568

約数和(自身を除く): 8114421

約数列:

[1, 3, 43, 61, 129, 183, 2623, 2663, 7869, 7989, 114509, 162443, 343527, 487329, 6985049, 20955147]

約数ペア:

[(1, 20955147), (3, 6985049), (43, 487329), (61, 343527), (129, 162443), (183, 114509), (2623, 7989), (2663, 7869)]