21930720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 192

約数和(自身を含む): 80994816

約数和(自身を除く): 59064096

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 105, 107, 112, 120, 122, 140, 160, 168, 183, 210, 214, 224, 240, 244, 280, 305, 321, 336, 366, 420, 427, 428, 480, 488, 535, 560, 610, 642, 672, 732, 749, 840, 854, 856, 915, 976, 1070, 1120, 1220, 1281, 1284, 1464, 1498, 1605, 1680, 1708, 1712, 1830, 1952, 2135, 2140, 2247, 2440, 2562, 2568, 2928, 2996, 3210, 3360, 3416, 3424, 3660, 3745, 4270, 4280, 4494, 4880, 5124, 5136, 5856, 5992, 6405, 6420, 6527, 6832, 7320, 7490, 8540, 8560, 8988, 9760, 10248, 10272, 11235, 11984, 12810, 12840, 13054, 13664, 14640, 14980, 17080, 17120, 17976, 19581, 20496, 22470, 23968, 25620, 25680, 26108, 29280, 29960, 32635, 34160, 35952, 39162, 40992, 44940, 45689, 51240, 51360, 52216, 59920, 65270, 68320, 71904, 78324, 89880, 91378, 97905, 102480, 104432, 119840, 130540, 137067, 156648, 179760, 182756, 195810, 204960, 208864, 228445, 261080, 274134, 313296, 359520, 365512, 391620, 456890, 522160, 548268, 626592, 685335, 731024, 783240, 913780, 1044320, 1096536, 1370670, 1462048, 1566480, 1827560, 2193072, 2741340, 3132960, 3655120, 4386144, 5482680, 7310240, 10965360, 21930720]

約数ペア:

[(1, 21930720), (2, 10965360), (3, 7310240), (4, 5482680), (5, 4386144), (6, 3655120), (7, 3132960), (8, 2741340), (10, 2193072), (12, 1827560), (14, 1566480), (15, 1462048), (16, 1370670), (20, 1096536), (21, 1044320), (24, 913780), (28, 783240), (30, 731024), (32, 685335), (35, 626592), (40, 548268), (42, 522160), (48, 456890), (56, 391620), (60, 365512), (61, 359520), (70, 313296), (80, 274134), (84, 261080), (96, 228445), (105, 208864), (107, 204960), (112, 195810), (120, 182756), (122, 179760), (140, 156648), (160, 137067), (168, 130540), (183, 119840), (210, 104432), (214, 102480), (224, 97905), (240, 91378), (244, 89880), (280, 78324), (305, 71904), (321, 68320), (336, 65270), (366, 59920), (420, 52216), (427, 51360), (428, 51240), (480, 45689), (488, 44940), (535, 40992), (560, 39162), (610, 35952), (642, 34160), (672, 32635), (732, 29960), (749, 29280), (840, 26108), (854, 25680), (856, 25620), (915, 23968), (976, 22470), (1070, 20496), (1120, 19581), (1220, 17976), (1281, 17120), (1284, 17080), (1464, 14980), (1498, 14640), (1605, 13664), (1680, 13054), (1708, 12840), (1712, 12810), (1830, 11984), (1952, 11235), (2135, 10272), (2140, 10248), (2247, 9760), (2440, 8988), (2562, 8560), (2568, 8540), (2928, 7490), (2996, 7320), (3210, 6832), (3360, 6527), (3416, 6420), (3424, 6405), (3660, 5992), (3745, 5856), (4270, 5136), (4280, 5124), (4494, 4880)]