21418560

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:130

約数の個数: 224

約数和(自身を含む): 78760320

約数和(自身を除く): 57341760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 64, 67, 72, 74, 80, 90, 96, 108, 111, 120, 134, 135, 144, 148, 160, 180, 185, 192, 201, 216, 222, 240, 268, 270, 288, 296, 320, 333, 335, 360, 370, 402, 432, 444, 480, 536, 540, 555, 576, 592, 603, 666, 670, 720, 740, 804, 864, 888, 960, 999, 1005, 1072, 1080, 1110, 1184, 1206, 1332, 1340, 1440, 1480, 1608, 1665, 1728, 1776, 1809, 1998, 2010, 2144, 2160, 2220, 2368, 2412, 2479, 2664, 2680, 2880, 2960, 3015, 3216, 3330, 3552, 3618, 3996, 4020, 4288, 4320, 4440, 4824, 4958, 4995, 5328, 5360, 5920, 6030, 6432, 6660, 7104, 7236, 7437, 7992, 8040, 8640, 8880, 9045, 9648, 9916, 9990, 10656, 10720, 11840, 12060, 12395, 12864, 13320, 14472, 14874, 15984, 16080, 17760, 18090, 19296, 19832, 19980, 21312, 21440, 22311, 24120, 24790, 26640, 28944, 29748, 31968, 32160, 35520, 36180, 37185, 38592, 39664, 39960, 44622, 48240, 49580, 53280, 57888, 59496, 63936, 64320, 66933, 72360, 74370, 79328, 79920, 89244, 96480, 99160, 106560, 111555, 115776, 118992, 133866, 144720, 148740, 158656, 159840, 178488, 192960, 198320, 223110, 237984, 267732, 289440, 297480, 319680, 334665, 356976, 396640, 446220, 475968, 535464, 578880, 594960, 669330, 713952, 793280, 892440, 1070928, 1189920, 1338660, 1427904, 1784880, 2141856, 2379840, 2677320, 3569760, 4283712, 5354640, 7139520, 10709280, 21418560]

約数ペア:

[(1, 21418560), (2, 10709280), (3, 7139520), (4, 5354640), (5, 4283712), (6, 3569760), (8, 2677320), (9, 2379840), (10, 2141856), (12, 1784880), (15, 1427904), (16, 1338660), (18, 1189920), (20, 1070928), (24, 892440), (27, 793280), (30, 713952), (32, 669330), (36, 594960), (37, 578880), (40, 535464), (45, 475968), (48, 446220), (54, 396640), (60, 356976), (64, 334665), (67, 319680), (72, 297480), (74, 289440), (80, 267732), (90, 237984), (96, 223110), (108, 198320), (111, 192960), (120, 178488), (134, 159840), (135, 158656), (144, 148740), (148, 144720), (160, 133866), (180, 118992), (185, 115776), (192, 111555), (201, 106560), (216, 99160), (222, 96480), (240, 89244), (268, 79920), (270, 79328), (288, 74370), (296, 72360), (320, 66933), (333, 64320), (335, 63936), (360, 59496), (370, 57888), (402, 53280), (432, 49580), (444, 48240), (480, 44622), (536, 39960), (540, 39664), (555, 38592), (576, 37185), (592, 36180), (603, 35520), (666, 32160), (670, 31968), (720, 29748), (740, 28944), (804, 26640), (864, 24790), (888, 24120), (960, 22311), (999, 21440), (1005, 21312), (1072, 19980), (1080, 19832), (1110, 19296), (1184, 18090), (1206, 17760), (1332, 16080), (1340, 15984), (1440, 14874), (1480, 14472), (1608, 13320), (1665, 12864), (1728, 12395), (1776, 12060), (1809, 11840), (1998, 10720), (2010, 10656), (2144, 9990), (2160, 9916), (2220, 9648), (2368, 9045), (2412, 8880), (2479, 8640), (2664, 8040), (2680, 7992), (2880, 7437), (2960, 7236), (3015, 7104), (3216, 6660), (3330, 6432), (3552, 6030), (3618, 5920), (3996, 5360), (4020, 5328), (4288, 4995), (4320, 4958), (4440, 4824)]