21084491805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1367}}^1$

素因数の和:1611

約数の個数: 128

約数和(自身を含む): 40154849280

約数和(自身を除く): 19070357475

約数列:

[1, 3, 5, 13, 15, 19, 23, 39, 57, 65, 69, 95, 115, 181, 195, 247, 285, 299, 345, 437, 543, 741, 897, 905, 1235, 1311, 1367, 1495, 2185, 2353, 2715, 3439, 3705, 4101, 4163, 4485, 5681, 6555, 6835, 7059, 10317, 11765, 12489, 17043, 17195, 17771, 20505, 20815, 25973, 28405, 31441, 35295, 44707, 51585, 53313, 54119, 62445, 77919, 79097, 85215, 88855, 94323, 129865, 134121, 157205, 162357, 223535, 237291, 247427, 266565, 270595, 337649, 389595, 395485, 408733, 471615, 597379, 670605, 742281, 811785, 1012947, 1028261, 1186455, 1226199, 1237135, 1688245, 1792137, 2043665, 2986895, 3084783, 3216551, 3711405, 4701113, 5064735, 5141305, 5690821, 6130995, 7765927, 8960685, 9649653, 14103339, 15423915, 16082755, 17072463, 23297781, 23505565, 28454105, 38829635, 48248265, 61114469, 70516695, 73980673, 85362315, 108125599, 116488905, 183343407, 221942019, 305572345, 324376797, 369903365, 540627995, 916717035, 1109710095, 1405632787, 1621883985, 4216898361, 7028163935, 21084491805]

約数ペア:

[(1, 21084491805), (3, 7028163935), (5, 4216898361), (13, 1621883985), (15, 1405632787), (19, 1109710095), (23, 916717035), (39, 540627995), (57, 369903365), (65, 324376797), (69, 305572345), (95, 221942019), (115, 183343407), (181, 116488905), (195, 108125599), (247, 85362315), (285, 73980673), (299, 70516695), (345, 61114469), (437, 48248265), (543, 38829635), (741, 28454105), (897, 23505565), (905, 23297781), (1235, 17072463), (1311, 16082755), (1367, 15423915), (1495, 14103339), (2185, 9649653), (2353, 8960685), (2715, 7765927), (3439, 6130995), (3705, 5690821), (4101, 5141305), (4163, 5064735), (4485, 4701113), (5681, 3711405), (6555, 3216551), (6835, 3084783), (7059, 2986895), (10317, 2043665), (11765, 1792137), (12489, 1688245), (17043, 1237135), (17195, 1226199), (17771, 1186455), (20505, 1028261), (20815, 1012947), (25973, 811785), (28405, 742281), (31441, 670605), (35295, 597379), (44707, 471615), (51585, 408733), (53313, 395485), (54119, 389595), (62445, 337649), (77919, 270595), (79097, 266565), (85215, 247427), (88855, 237291), (94323, 223535), (129865, 162357), (134121, 157205)]