289372671

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2887}}^1$

素因数の和:2980

約数の個数: 48

約数和(自身を含む): 502188544

約数和(自身を除く): 212815873

約数列:

[1, 3, 7, 9, 21, 37, 43, 63, 111, 129, 259, 301, 333, 387, 777, 903, 1591, 2331, 2709, 2887, 4773, 8661, 11137, 14319, 20209, 25983, 33411, 60627, 100233, 106819, 124141, 181881, 320457, 372423, 747733, 868987, 961371, 1117269, 2243199, 2606961, 4593217, 6729597, 7820883, 13779651, 32152519, 41338953, 96457557, 289372671]

約数ペア:

[(1, 289372671), (3, 96457557), (7, 41338953), (9, 32152519), (21, 13779651), (37, 7820883), (43, 6729597), (63, 4593217), (111, 2606961), (129, 2243199), (259, 1117269), (301, 961371), (333, 868987), (387, 747733), (777, 372423), (903, 320457), (1591, 181881), (2331, 124141), (2709, 106819), (2887, 100233), (4773, 60627), (8661, 33411), (11137, 25983), (14319, 20209)]