20983704

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 63936000

約数和(自身を除く): 42952296

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 59, 73, 84, 87, 116, 118, 146, 168, 174, 177, 203, 219, 232, 236, 292, 348, 354, 406, 413, 438, 472, 511, 584, 609, 696, 708, 812, 826, 876, 1022, 1218, 1239, 1416, 1533, 1624, 1652, 1711, 1752, 2044, 2117, 2436, 2478, 3066, 3304, 3422, 4088, 4234, 4307, 4872, 4956, 5133, 6132, 6351, 6844, 8468, 8614, 9912, 10266, 11977, 12264, 12702, 12921, 13688, 14819, 16936, 17228, 20532, 23954, 25404, 25842, 29638, 30149, 34456, 35931, 41064, 44457, 47908, 50808, 51684, 59276, 60298, 71862, 88914, 90447, 95816, 103368, 118552, 120596, 124903, 143724, 177828, 180894, 241192, 249806, 287448, 355656, 361788, 374709, 499612, 723576, 749418, 874321, 999224, 1498836, 1748642, 2622963, 2997672, 3497284, 5245926, 6994568, 10491852, 20983704]

約数ペア:

[(1, 20983704), (2, 10491852), (3, 6994568), (4, 5245926), (6, 3497284), (7, 2997672), (8, 2622963), (12, 1748642), (14, 1498836), (21, 999224), (24, 874321), (28, 749418), (29, 723576), (42, 499612), (56, 374709), (58, 361788), (59, 355656), (73, 287448), (84, 249806), (87, 241192), (116, 180894), (118, 177828), (146, 143724), (168, 124903), (174, 120596), (177, 118552), (203, 103368), (219, 95816), (232, 90447), (236, 88914), (292, 71862), (348, 60298), (354, 59276), (406, 51684), (413, 50808), (438, 47908), (472, 44457), (511, 41064), (584, 35931), (609, 34456), (696, 30149), (708, 29638), (812, 25842), (826, 25404), (876, 23954), (1022, 20532), (1218, 17228), (1239, 16936), (1416, 14819), (1533, 13688), (1624, 12921), (1652, 12702), (1711, 12264), (1752, 11977), (2044, 10266), (2117, 9912), (2436, 8614), (2478, 8468), (3066, 6844), (3304, 6351), (3422, 6132), (4088, 5133), (4234, 4956), (4307, 4872)]