21799680

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{811}}^1$

素因数の和:842

約数の個数: 144

約数和(自身を含む): 79666944

約数和(自身を除く): 57867264

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, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 811, 840, 896, 960, 1120, 1280, 1344, 1622, 1680, 1792, 1920, 2240, 2433, 2688, 3244, 3360, 3840, 4055, 4480, 4866, 5376, 5677, 6488, 6720, 8110, 8960, 9732, 11354, 12165, 12976, 13440, 16220, 17031, 19464, 22708, 24330, 25952, 26880, 28385, 32440, 34062, 38928, 45416, 48660, 51904, 56770, 64880, 68124, 77856, 85155, 90832, 97320, 103808, 113540, 129760, 136248, 155712, 170310, 181664, 194640, 207616, 227080, 259520, 272496, 311424, 340620, 363328, 389280, 454160, 519040, 544992, 622848, 681240, 726656, 778560, 908320, 1038080, 1089984, 1362480, 1453312, 1557120, 1816640, 2179968, 2724960, 3114240, 3633280, 4359936, 5449920, 7266560, 10899840, 21799680]

約数ペア:

[(1, 21799680), (2, 10899840), (3, 7266560), (4, 5449920), (5, 4359936), (6, 3633280), (7, 3114240), (8, 2724960), (10, 2179968), (12, 1816640), (14, 1557120), (15, 1453312), (16, 1362480), (20, 1089984), (21, 1038080), (24, 908320), (28, 778560), (30, 726656), (32, 681240), (35, 622848), (40, 544992), (42, 519040), (48, 454160), (56, 389280), (60, 363328), (64, 340620), (70, 311424), (80, 272496), (84, 259520), (96, 227080), (105, 207616), (112, 194640), (120, 181664), (128, 170310), (140, 155712), (160, 136248), (168, 129760), (192, 113540), (210, 103808), (224, 97320), (240, 90832), (256, 85155), (280, 77856), (320, 68124), (336, 64880), (384, 56770), (420, 51904), (448, 48660), (480, 45416), (560, 38928), (640, 34062), (672, 32440), (768, 28385), (811, 26880), (840, 25952), (896, 24330), (960, 22708), (1120, 19464), (1280, 17031), (1344, 16220), (1622, 13440), (1680, 12976), (1792, 12165), (1920, 11354), (2240, 9732), (2433, 8960), (2688, 8110), (3244, 6720), (3360, 6488), (3840, 5677), (4055, 5376), (4480, 4866)]