393937537

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{607}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 490291200

約数和(自身を除く): 96353663

約数列:

[1, 7, 23, 29, 139, 161, 203, 607, 667, 973, 3197, 4031, 4249, 4669, 13961, 17603, 22379, 28217, 84373, 92713, 97727, 123221, 404869, 590611, 648991, 1940579, 2446817, 2834083, 13584053, 17127719, 56276791, 393937537]

約数ペア:

[(1, 393937537), (7, 56276791), (23, 17127719), (29, 13584053), (139, 2834083), (161, 2446817), (203, 1940579), (607, 648991), (667, 590611), (973, 404869), (3197, 123221), (4031, 97727), (4249, 92713), (4669, 84373), (13961, 28217), (17603, 22379)]