161213381

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 192067200

約数和(自身を除く): 30853819

約数列:

[1, 7, 49, 71, 149, 311, 497, 1043, 2177, 3479, 7301, 10579, 15239, 22081, 46339, 74053, 154567, 324373, 518371, 1081969, 2270611, 3290069, 23030483, 161213381]

約数ペア:

[(1, 161213381), (7, 23030483), (49, 3290069), (71, 2270611), (149, 1081969), (311, 518371), (497, 324373), (1043, 154567), (2177, 74053), (3479, 46339), (7301, 22081), (10579, 15239)]