21346560

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:153

約数の個数: 216

約数和(自身を含む): 78918840

約数和(自身を除く): 57572280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 109, 120, 128, 136, 144, 153, 160, 170, 180, 192, 204, 218, 240, 255, 256, 272, 288, 306, 320, 327, 340, 360, 384, 408, 436, 480, 510, 544, 545, 576, 612, 640, 654, 680, 720, 765, 768, 816, 872, 960, 981, 1020, 1088, 1090, 1152, 1224, 1280, 1308, 1360, 1440, 1530, 1632, 1635, 1744, 1853, 1920, 1962, 2040, 2176, 2180, 2304, 2448, 2616, 2720, 2880, 3060, 3264, 3270, 3488, 3706, 3840, 3924, 4080, 4352, 4360, 4896, 4905, 5232, 5440, 5559, 5760, 6120, 6528, 6540, 6976, 7412, 7848, 8160, 8720, 9265, 9792, 9810, 10464, 10880, 11118, 11520, 12240, 13056, 13080, 13952, 14824, 15696, 16320, 16677, 17440, 18530, 19584, 19620, 20928, 21760, 22236, 24480, 26160, 27795, 27904, 29648, 31392, 32640, 33354, 34880, 37060, 39168, 39240, 41856, 44472, 48960, 52320, 55590, 59296, 62784, 65280, 66708, 69760, 74120, 78480, 83385, 83712, 88944, 97920, 104640, 111180, 118592, 125568, 133416, 139520, 148240, 156960, 166770, 177888, 195840, 209280, 222360, 237184, 251136, 266832, 296480, 313920, 333540, 355776, 418560, 444720, 474368, 533664, 592960, 627840, 667080, 711552, 889440, 1067328, 1185920, 1255680, 1334160, 1423104, 1778880, 2134656, 2371840, 2668320, 3557760, 4269312, 5336640, 7115520, 10673280, 21346560]

約数ペア:

[(1, 21346560), (2, 10673280), (3, 7115520), (4, 5336640), (5, 4269312), (6, 3557760), (8, 2668320), (9, 2371840), (10, 2134656), (12, 1778880), (15, 1423104), (16, 1334160), (17, 1255680), (18, 1185920), (20, 1067328), (24, 889440), (30, 711552), (32, 667080), (34, 627840), (36, 592960), (40, 533664), (45, 474368), (48, 444720), (51, 418560), (60, 355776), (64, 333540), (68, 313920), (72, 296480), (80, 266832), (85, 251136), (90, 237184), (96, 222360), (102, 209280), (109, 195840), (120, 177888), (128, 166770), (136, 156960), (144, 148240), (153, 139520), (160, 133416), (170, 125568), (180, 118592), (192, 111180), (204, 104640), (218, 97920), (240, 88944), (255, 83712), (256, 83385), (272, 78480), (288, 74120), (306, 69760), (320, 66708), (327, 65280), (340, 62784), (360, 59296), (384, 55590), (408, 52320), (436, 48960), (480, 44472), (510, 41856), (544, 39240), (545, 39168), (576, 37060), (612, 34880), (640, 33354), (654, 32640), (680, 31392), (720, 29648), (765, 27904), (768, 27795), (816, 26160), (872, 24480), (960, 22236), (981, 21760), (1020, 20928), (1088, 19620), (1090, 19584), (1152, 18530), (1224, 17440), (1280, 16677), (1308, 16320), (1360, 15696), (1440, 14824), (1530, 13952), (1632, 13080), (1635, 13056), (1744, 12240), (1853, 11520), (1920, 11118), (1962, 10880), (2040, 10464), (2176, 9810), (2180, 9792), (2304, 9265), (2448, 8720), (2616, 8160), (2720, 7848), (2880, 7412), (3060, 6976), (3264, 6540), (3270, 6528), (3488, 6120), (3706, 5760), (3840, 5559), (3924, 5440), (4080, 5232), (4352, 4905), (4360, 4896)]