21549360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 77709312

約数和(自身を除く): 56159952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 101, 105, 112, 120, 127, 140, 168, 202, 210, 240, 254, 280, 303, 336, 381, 404, 420, 505, 508, 560, 606, 635, 707, 762, 808, 840, 889, 1010, 1016, 1212, 1270, 1414, 1515, 1524, 1616, 1680, 1778, 1905, 2020, 2032, 2121, 2424, 2540, 2667, 2828, 3030, 3048, 3535, 3556, 3810, 4040, 4242, 4445, 4848, 5080, 5334, 5656, 6060, 6096, 7070, 7112, 7620, 8080, 8484, 8890, 10160, 10605, 10668, 11312, 12120, 12827, 13335, 14140, 14224, 15240, 16968, 17780, 21210, 21336, 24240, 25654, 26670, 28280, 30480, 33936, 35560, 38481, 42420, 42672, 51308, 53340, 56560, 64135, 71120, 76962, 84840, 89789, 102616, 106680, 128270, 153924, 169680, 179578, 192405, 205232, 213360, 256540, 269367, 307848, 359156, 384810, 448945, 513080, 538734, 615696, 718312, 769620, 897890, 1026160, 1077468, 1346835, 1436624, 1539240, 1795780, 2154936, 2693670, 3078480, 3591560, 4309872, 5387340, 7183120, 10774680, 21549360]

約数ペア:

[(1, 21549360), (2, 10774680), (3, 7183120), (4, 5387340), (5, 4309872), (6, 3591560), (7, 3078480), (8, 2693670), (10, 2154936), (12, 1795780), (14, 1539240), (15, 1436624), (16, 1346835), (20, 1077468), (21, 1026160), (24, 897890), (28, 769620), (30, 718312), (35, 615696), (40, 538734), (42, 513080), (48, 448945), (56, 384810), (60, 359156), (70, 307848), (80, 269367), (84, 256540), (101, 213360), (105, 205232), (112, 192405), (120, 179578), (127, 169680), (140, 153924), (168, 128270), (202, 106680), (210, 102616), (240, 89789), (254, 84840), (280, 76962), (303, 71120), (336, 64135), (381, 56560), (404, 53340), (420, 51308), (505, 42672), (508, 42420), (560, 38481), (606, 35560), (635, 33936), (707, 30480), (762, 28280), (808, 26670), (840, 25654), (889, 24240), (1010, 21336), (1016, 21210), (1212, 17780), (1270, 16968), (1414, 15240), (1515, 14224), (1524, 14140), (1616, 13335), (1680, 12827), (1778, 12120), (1905, 11312), (2020, 10668), (2032, 10605), (2121, 10160), (2424, 8890), (2540, 8484), (2667, 8080), (2828, 7620), (3030, 7112), (3048, 7070), (3535, 6096), (3556, 6060), (3810, 5656), (4040, 5334), (4242, 5080), (4445, 4848)]