21558900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 48436620

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 47, 50, 55, 60, 66, 75, 94, 100, 110, 132, 139, 141, 150, 165, 188, 220, 235, 275, 278, 282, 300, 330, 417, 470, 517, 550, 556, 564, 660, 695, 705, 825, 834, 940, 1034, 1100, 1175, 1390, 1410, 1529, 1551, 1650, 1668, 2068, 2085, 2350, 2585, 2780, 2820, 3058, 3102, 3300, 3475, 3525, 4170, 4587, 4700, 5170, 6116, 6204, 6533, 6950, 7050, 7645, 7755, 8340, 9174, 10340, 10425, 12925, 13066, 13900, 14100, 15290, 15510, 18348, 19599, 20850, 22935, 25850, 26132, 30580, 31020, 32665, 38225, 38775, 39198, 41700, 45870, 51700, 65330, 71863, 76450, 77550, 78396, 91740, 97995, 114675, 130660, 143726, 152900, 155100, 163325, 195990, 215589, 229350, 287452, 326650, 359315, 391980, 431178, 458700, 489975, 653300, 718630, 862356, 979950, 1077945, 1437260, 1796575, 1959900, 2155890, 3593150, 4311780, 5389725, 7186300, 10779450, 21558900]

約数ペア:

[(1, 21558900), (2, 10779450), (3, 7186300), (4, 5389725), (5, 4311780), (6, 3593150), (10, 2155890), (11, 1959900), (12, 1796575), (15, 1437260), (20, 1077945), (22, 979950), (25, 862356), (30, 718630), (33, 653300), (44, 489975), (47, 458700), (50, 431178), (55, 391980), (60, 359315), (66, 326650), (75, 287452), (94, 229350), (100, 215589), (110, 195990), (132, 163325), (139, 155100), (141, 152900), (150, 143726), (165, 130660), (188, 114675), (220, 97995), (235, 91740), (275, 78396), (278, 77550), (282, 76450), (300, 71863), (330, 65330), (417, 51700), (470, 45870), (517, 41700), (550, 39198), (556, 38775), (564, 38225), (660, 32665), (695, 31020), (705, 30580), (825, 26132), (834, 25850), (940, 22935), (1034, 20850), (1100, 19599), (1175, 18348), (1390, 15510), (1410, 15290), (1529, 14100), (1551, 13900), (1650, 13066), (1668, 12925), (2068, 10425), (2085, 10340), (2350, 9174), (2585, 8340), (2780, 7755), (2820, 7645), (3058, 7050), (3102, 6950), (3300, 6533), (3475, 6204), (3525, 6116), (4170, 5170), (4587, 4700)]