21031875960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{249311}}^1$

素因数の和:249381

約数の個数: 128

約数和(自身を含む): 68211763200

約数和(自身を除く): 47179887240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 37, 38, 40, 57, 60, 74, 76, 95, 111, 114, 120, 148, 152, 185, 190, 222, 228, 285, 296, 370, 380, 444, 456, 555, 570, 703, 740, 760, 888, 1110, 1140, 1406, 1480, 2109, 2220, 2280, 2812, 3515, 4218, 4440, 5624, 7030, 8436, 10545, 14060, 16872, 21090, 28120, 42180, 84360, 249311, 498622, 747933, 997244, 1246555, 1495866, 1994488, 2493110, 2991732, 3739665, 4736909, 4986220, 5983464, 7479330, 9224507, 9473818, 9972440, 14210727, 14958660, 18449014, 18947636, 23684545, 27673521, 28421454, 29917320, 36898028, 37895272, 46122535, 47369090, 55347042, 56842908, 71053635, 73796056, 92245070, 94738180, 110694084, 113685816, 138367605, 142107270, 175265633, 184490140, 189476360, 221388168, 276735210, 284214540, 350531266, 368980280, 525796899, 553470420, 568429080, 701062532, 876328165, 1051593798, 1106940840, 1402125064, 1752656330, 2103187596, 2628984495, 3505312660, 4206375192, 5257968990, 7010625320, 10515937980, 21031875960]

約数ペア:

[(1, 21031875960), (2, 10515937980), (3, 7010625320), (4, 5257968990), (5, 4206375192), (6, 3505312660), (8, 2628984495), (10, 2103187596), (12, 1752656330), (15, 1402125064), (19, 1106940840), (20, 1051593798), (24, 876328165), (30, 701062532), (37, 568429080), (38, 553470420), (40, 525796899), (57, 368980280), (60, 350531266), (74, 284214540), (76, 276735210), (95, 221388168), (111, 189476360), (114, 184490140), (120, 175265633), (148, 142107270), (152, 138367605), (185, 113685816), (190, 110694084), (222, 94738180), (228, 92245070), (285, 73796056), (296, 71053635), (370, 56842908), (380, 55347042), (444, 47369090), (456, 46122535), (555, 37895272), (570, 36898028), (703, 29917320), (740, 28421454), (760, 27673521), (888, 23684545), (1110, 18947636), (1140, 18449014), (1406, 14958660), (1480, 14210727), (2109, 9972440), (2220, 9473818), (2280, 9224507), (2812, 7479330), (3515, 5983464), (4218, 4986220), (4440, 4736909), (5624, 3739665), (7030, 2991732), (8436, 2493110), (10545, 1994488), (14060, 1495866), (16872, 1246555), (21090, 997244), (28120, 747933), (42180, 498622), (84360, 249311)]