19779722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{1663}}^1$

素因数の和:1997

約数の個数: 16

約数和(自身を含む): 31349760

約数和(自身を除く): 11570038

約数列:

[1, 2, 19, 38, 313, 626, 1663, 3326, 5947, 11894, 31597, 63194, 520519, 1041038, 9889861, 19779722]

約数ペア:

[(1, 19779722), (2, 9889861), (19, 1041038), (38, 520519), (313, 63194), (626, 31597), (1663, 11894), (3326, 5947)]