21093345

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 49351680

約数和(自身を除く): 28258335

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 27, 35, 39, 45, 51, 63, 65, 85, 91, 101, 105, 117, 119, 135, 153, 189, 195, 221, 255, 273, 303, 315, 351, 357, 455, 459, 505, 585, 595, 663, 707, 765, 819, 909, 945, 1071, 1105, 1313, 1365, 1515, 1547, 1717, 1755, 1785, 1989, 2121, 2295, 2457, 2727, 3213, 3315, 3535, 3939, 4095, 4545, 4641, 5151, 5355, 5967, 6363, 6565, 7735, 8585, 9191, 9945, 10605, 11817, 12019, 12285, 13635, 13923, 15453, 16065, 19089, 19695, 22321, 23205, 25755, 27573, 29835, 31815, 35451, 36057, 41769, 45955, 46359, 59085, 60095, 66963, 69615, 77265, 82719, 95445, 108171, 111605, 137865, 156247, 177255, 180285, 200889, 208845, 231795, 248157, 324513, 334815, 413595, 468741, 540855, 602667, 781235, 1004445, 1240785, 1406223, 1622565, 2343705, 3013335, 4218669, 7031115, 21093345]

約数ペア:

[(1, 21093345), (3, 7031115), (5, 4218669), (7, 3013335), (9, 2343705), (13, 1622565), (15, 1406223), (17, 1240785), (21, 1004445), (27, 781235), (35, 602667), (39, 540855), (45, 468741), (51, 413595), (63, 334815), (65, 324513), (85, 248157), (91, 231795), (101, 208845), (105, 200889), (117, 180285), (119, 177255), (135, 156247), (153, 137865), (189, 111605), (195, 108171), (221, 95445), (255, 82719), (273, 77265), (303, 69615), (315, 66963), (351, 60095), (357, 59085), (455, 46359), (459, 45955), (505, 41769), (585, 36057), (595, 35451), (663, 31815), (707, 29835), (765, 27573), (819, 25755), (909, 23205), (945, 22321), (1071, 19695), (1105, 19089), (1313, 16065), (1365, 15453), (1515, 13923), (1547, 13635), (1717, 12285), (1755, 12019), (1785, 11817), (1989, 10605), (2121, 9945), (2295, 9191), (2457, 8585), (2727, 7735), (3213, 6565), (3315, 6363), (3535, 5967), (3939, 5355), (4095, 5151), (4545, 4641)]