40908007

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 52715520

約数和(自身を除く): 11807513

約数列:

[1, 7, 19, 23, 43, 133, 161, 301, 311, 437, 817, 989, 2177, 3059, 5719, 5909, 6923, 7153, 13373, 18791, 41363, 50071, 93611, 131537, 135907, 254087, 307579, 951349, 1778609, 2153053, 5844001, 40908007]

約数ペア:

[(1, 40908007), (7, 5844001), (19, 2153053), (23, 1778609), (43, 951349), (133, 307579), (161, 254087), (301, 135907), (311, 131537), (437, 93611), (817, 50071), (989, 41363), (2177, 18791), (3059, 13373), (5719, 7153), (5909, 6923)]