21476880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 160

約数和(自身を含む): 75649920

約数和(自身を除く): 54173040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 90, 108, 120, 122, 135, 144, 163, 180, 183, 216, 240, 244, 270, 305, 326, 360, 366, 432, 488, 489, 540, 549, 610, 652, 720, 732, 815, 915, 976, 978, 1080, 1098, 1220, 1304, 1464, 1467, 1630, 1647, 1830, 1956, 2160, 2196, 2440, 2445, 2608, 2745, 2928, 2934, 3260, 3294, 3660, 3912, 4392, 4401, 4880, 4890, 5490, 5868, 6520, 6588, 7320, 7335, 7824, 8235, 8784, 8802, 9780, 9943, 10980, 11736, 13040, 13176, 14640, 14670, 16470, 17604, 19560, 19886, 21960, 22005, 23472, 26352, 29340, 29829, 32940, 35208, 39120, 39772, 43920, 44010, 49715, 58680, 59658, 65880, 70416, 79544, 88020, 89487, 99430, 117360, 119316, 131760, 149145, 159088, 176040, 178974, 198860, 238632, 268461, 298290, 352080, 357948, 397720, 447435, 477264, 536922, 596580, 715896, 795440, 894870, 1073844, 1193160, 1342305, 1431792, 1789740, 2147688, 2386320, 2684610, 3579480, 4295376, 5369220, 7158960, 10738440, 21476880]

約数ペア:

[(1, 21476880), (2, 10738440), (3, 7158960), (4, 5369220), (5, 4295376), (6, 3579480), (8, 2684610), (9, 2386320), (10, 2147688), (12, 1789740), (15, 1431792), (16, 1342305), (18, 1193160), (20, 1073844), (24, 894870), (27, 795440), (30, 715896), (36, 596580), (40, 536922), (45, 477264), (48, 447435), (54, 397720), (60, 357948), (61, 352080), (72, 298290), (80, 268461), (90, 238632), (108, 198860), (120, 178974), (122, 176040), (135, 159088), (144, 149145), (163, 131760), (180, 119316), (183, 117360), (216, 99430), (240, 89487), (244, 88020), (270, 79544), (305, 70416), (326, 65880), (360, 59658), (366, 58680), (432, 49715), (488, 44010), (489, 43920), (540, 39772), (549, 39120), (610, 35208), (652, 32940), (720, 29829), (732, 29340), (815, 26352), (915, 23472), (976, 22005), (978, 21960), (1080, 19886), (1098, 19560), (1220, 17604), (1304, 16470), (1464, 14670), (1467, 14640), (1630, 13176), (1647, 13040), (1830, 11736), (1956, 10980), (2160, 9943), (2196, 9780), (2440, 8802), (2445, 8784), (2608, 8235), (2745, 7824), (2928, 7335), (2934, 7320), (3260, 6588), (3294, 6520), (3660, 5868), (3912, 5490), (4392, 4890), (4401, 4880)]