21275520

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1583}}^1$

素因数の和:1612

約数の個数: 128

約数和(自身を含む): 77552640

約数和(自身を除く): 56277120

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, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1583, 1680, 1920, 2240, 2688, 3166, 3360, 4480, 4749, 6332, 6720, 7915, 9498, 11081, 12664, 13440, 15830, 18996, 22162, 23745, 25328, 31660, 33243, 37992, 44324, 47490, 50656, 55405, 63320, 66486, 75984, 88648, 94980, 101312, 110810, 126640, 132972, 151968, 166215, 177296, 189960, 202624, 221620, 253280, 265944, 303936, 332430, 354592, 379920, 443240, 506560, 531888, 607872, 664860, 709184, 759840, 886480, 1013120, 1063776, 1329720, 1418368, 1519680, 1772960, 2127552, 2659440, 3039360, 3545920, 4255104, 5318880, 7091840, 10637760, 21275520]

約数ペア:

[(1, 21275520), (2, 10637760), (3, 7091840), (4, 5318880), (5, 4255104), (6, 3545920), (7, 3039360), (8, 2659440), (10, 2127552), (12, 1772960), (14, 1519680), (15, 1418368), (16, 1329720), (20, 1063776), (21, 1013120), (24, 886480), (28, 759840), (30, 709184), (32, 664860), (35, 607872), (40, 531888), (42, 506560), (48, 443240), (56, 379920), (60, 354592), (64, 332430), (70, 303936), (80, 265944), (84, 253280), (96, 221620), (105, 202624), (112, 189960), (120, 177296), (128, 166215), (140, 151968), (160, 132972), (168, 126640), (192, 110810), (210, 101312), (224, 94980), (240, 88648), (280, 75984), (320, 66486), (336, 63320), (384, 55405), (420, 50656), (448, 47490), (480, 44324), (560, 37992), (640, 33243), (672, 31660), (840, 25328), (896, 23745), (960, 22162), (1120, 18996), (1344, 15830), (1583, 13440), (1680, 12664), (1920, 11081), (2240, 9498), (2688, 7915), (3166, 6720), (3360, 6332), (4480, 4749)]