21110880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:189

約数の個数: 192

約数和(自身を含む): 77995008

約数和(自身を除く): 56884128

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, 103, 105, 112, 120, 122, 140, 160, 168, 183, 206, 210, 224, 240, 244, 280, 305, 309, 336, 366, 412, 420, 427, 480, 488, 515, 560, 610, 618, 672, 721, 732, 824, 840, 854, 915, 976, 1030, 1120, 1220, 1236, 1281, 1442, 1464, 1545, 1648, 1680, 1708, 1830, 1952, 2060, 2135, 2163, 2440, 2472, 2562, 2884, 2928, 3090, 3296, 3360, 3416, 3605, 3660, 4120, 4270, 4326, 4880, 4944, 5124, 5768, 5856, 6180, 6283, 6405, 6832, 7210, 7320, 8240, 8540, 8652, 9760, 9888, 10248, 10815, 11536, 12360, 12566, 12810, 13664, 14420, 14640, 16480, 17080, 17304, 18849, 20496, 21630, 23072, 24720, 25132, 25620, 28840, 29280, 31415, 34160, 34608, 37698, 40992, 43260, 43981, 49440, 50264, 51240, 57680, 62830, 68320, 69216, 75396, 86520, 87962, 94245, 100528, 102480, 115360, 125660, 131943, 150792, 173040, 175924, 188490, 201056, 204960, 219905, 251320, 263886, 301584, 346080, 351848, 376980, 439810, 502640, 527772, 603168, 659715, 703696, 753960, 879620, 1005280, 1055544, 1319430, 1407392, 1507920, 1759240, 2111088, 2638860, 3015840, 3518480, 4222176, 5277720, 7036960, 10555440, 21110880]

約数ペア:

[(1, 21110880), (2, 10555440), (3, 7036960), (4, 5277720), (5, 4222176), (6, 3518480), (7, 3015840), (8, 2638860), (10, 2111088), (12, 1759240), (14, 1507920), (15, 1407392), (16, 1319430), (20, 1055544), (21, 1005280), (24, 879620), (28, 753960), (30, 703696), (32, 659715), (35, 603168), (40, 527772), (42, 502640), (48, 439810), (56, 376980), (60, 351848), (61, 346080), (70, 301584), (80, 263886), (84, 251320), (96, 219905), (103, 204960), (105, 201056), (112, 188490), (120, 175924), (122, 173040), (140, 150792), (160, 131943), (168, 125660), (183, 115360), (206, 102480), (210, 100528), (224, 94245), (240, 87962), (244, 86520), (280, 75396), (305, 69216), (309, 68320), (336, 62830), (366, 57680), (412, 51240), (420, 50264), (427, 49440), (480, 43981), (488, 43260), (515, 40992), (560, 37698), (610, 34608), (618, 34160), (672, 31415), (721, 29280), (732, 28840), (824, 25620), (840, 25132), (854, 24720), (915, 23072), (976, 21630), (1030, 20496), (1120, 18849), (1220, 17304), (1236, 17080), (1281, 16480), (1442, 14640), (1464, 14420), (1545, 13664), (1648, 12810), (1680, 12566), (1708, 12360), (1830, 11536), (1952, 10815), (2060, 10248), (2135, 9888), (2163, 9760), (2440, 8652), (2472, 8540), (2562, 8240), (2884, 7320), (2928, 7210), (3090, 6832), (3296, 6405), (3360, 6283), (3416, 6180), (3605, 5856), (3660, 5768), (4120, 5124), (4270, 4944), (4326, 4880)]