71890889

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2087}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 90452160

約数和(自身を除く): 18561271

約数列:

[1, 7, 19, 37, 49, 133, 259, 703, 931, 1813, 2087, 4921, 14609, 34447, 39653, 77219, 102263, 277571, 540533, 1467161, 1942997, 3783731, 10270127, 71890889]

約数ペア:

[(1, 71890889), (7, 10270127), (19, 3783731), (37, 1942997), (49, 1467161), (133, 540533), (259, 277571), (703, 102263), (931, 77219), (1813, 39653), (2087, 34447), (4921, 14609)]