161423221

素因数分解:

${\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{643}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 173467840

約数和(自身を除く): 12044619

約数列:

[1, 19, 73, 181, 643, 1387, 3439, 12217, 13213, 46939, 116383, 251047, 891841, 2211277, 8495959, 161423221]

約数ペア:

[(1, 161423221), (19, 8495959), (73, 2211277), (181, 891841), (643, 251047), (1387, 116383), (3439, 46939), (12217, 13213)]