161521129

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 209682432

約数和(自身を除く): 48161303

約数列:

[1, 7, 11, 31, 77, 157, 217, 341, 431, 1099, 1727, 2387, 3017, 4741, 4867, 12089, 13361, 33187, 34069, 53537, 67667, 93527, 146971, 374759, 473669, 744337, 1028797, 2097677, 5210359, 14683739, 23074447, 161521129]

約数ペア:

[(1, 161521129), (7, 23074447), (11, 14683739), (31, 5210359), (77, 2097677), (157, 1028797), (217, 744337), (341, 473669), (431, 374759), (1099, 146971), (1727, 93527), (2387, 67667), (3017, 53537), (4741, 34069), (4867, 33187), (12089, 13361)]