21493080

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2843}}^1$

素因数の和:2870

約数の個数: 128

約数和(自身を含む): 81907200

約数和(自身を除く): 60414120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2843, 3780, 5686, 7560, 8529, 11372, 14215, 17058, 19901, 22744, 25587, 28430, 34116, 39802, 42645, 51174, 56860, 59703, 68232, 76761, 79604, 85290, 99505, 102348, 113720, 119406, 127935, 153522, 159208, 170580, 179109, 199010, 204696, 238812, 255870, 298515, 307044, 341160, 358218, 383805, 398020, 477624, 511740, 537327, 597030, 614088, 716436, 767610, 796040, 895545, 1023480, 1074654, 1194060, 1432872, 1535220, 1791090, 2149308, 2388120, 2686635, 3070440, 3582180, 4298616, 5373270, 7164360, 10746540, 21493080]

約数ペア:

[(1, 21493080), (2, 10746540), (3, 7164360), (4, 5373270), (5, 4298616), (6, 3582180), (7, 3070440), (8, 2686635), (9, 2388120), (10, 2149308), (12, 1791090), (14, 1535220), (15, 1432872), (18, 1194060), (20, 1074654), (21, 1023480), (24, 895545), (27, 796040), (28, 767610), (30, 716436), (35, 614088), (36, 597030), (40, 537327), (42, 511740), (45, 477624), (54, 398020), (56, 383805), (60, 358218), (63, 341160), (70, 307044), (72, 298515), (84, 255870), (90, 238812), (105, 204696), (108, 199010), (120, 179109), (126, 170580), (135, 159208), (140, 153522), (168, 127935), (180, 119406), (189, 113720), (210, 102348), (216, 99505), (252, 85290), (270, 79604), (280, 76761), (315, 68232), (360, 59703), (378, 56860), (420, 51174), (504, 42645), (540, 39802), (630, 34116), (756, 28430), (840, 25587), (945, 22744), (1080, 19901), (1260, 17058), (1512, 14215), (1890, 11372), (2520, 8529), (2843, 7560), (3780, 5686)]