816751089

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:691

約数の個数: 72

約数和(自身を含む): 1491089600

約数和(自身を除く): 674338511

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 307, 349, 363, 693, 847, 921, 1047, 1089, 2149, 2443, 2541, 2763, 3141, 3377, 3839, 6447, 7329, 7623, 10131, 11517, 19341, 21987, 23639, 26873, 30393, 34551, 37147, 42229, 70917, 80619, 107143, 111441, 126687, 212751, 241857, 260029, 295603, 321429, 334323, 380061, 750001, 780087, 886809, 964287, 1178573, 2250003, 2340261, 2660427, 3535719, 6750009, 8250011, 10607157, 12964303, 24750033, 38892909, 74250099, 90750121, 116678727, 272250363, 816751089]

約数ペア:

[(1, 816751089), (3, 272250363), (7, 116678727), (9, 90750121), (11, 74250099), (21, 38892909), (33, 24750033), (63, 12964303), (77, 10607157), (99, 8250011), (121, 6750009), (231, 3535719), (307, 2660427), (349, 2340261), (363, 2250003), (693, 1178573), (847, 964287), (921, 886809), (1047, 780087), (1089, 750001), (2149, 380061), (2443, 334323), (2541, 321429), (2763, 295603), (3141, 260029), (3377, 241857), (3839, 212751), (6447, 126687), (7329, 111441), (7623, 107143), (10131, 80619), (11517, 70917), (19341, 42229), (21987, 37147), (23639, 34551), (26873, 30393)]