21872844

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 67878720

約数和(自身を除く): 46005876

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 41, 42, 58, 63, 73, 82, 84, 87, 116, 123, 126, 146, 164, 174, 203, 219, 246, 252, 261, 287, 292, 348, 369, 406, 438, 492, 511, 522, 574, 609, 657, 738, 812, 861, 876, 1022, 1044, 1148, 1189, 1218, 1314, 1476, 1533, 1722, 1827, 2044, 2117, 2378, 2436, 2583, 2628, 2993, 3066, 3444, 3567, 3654, 4234, 4599, 4756, 5166, 5986, 6132, 6351, 7134, 7308, 8323, 8468, 8979, 9198, 10332, 10701, 11972, 12702, 14268, 14819, 16646, 17958, 18396, 19053, 20951, 21402, 24969, 25404, 26937, 29638, 33292, 35916, 38106, 41902, 42804, 44457, 49938, 53874, 59276, 62853, 74907, 76212, 83804, 86797, 88914, 99876, 107748, 125706, 133371, 149814, 173594, 177828, 188559, 251412, 260391, 266742, 299628, 347188, 377118, 520782, 533484, 607579, 754236, 781173, 1041564, 1215158, 1562346, 1822737, 2430316, 3124692, 3645474, 5468211, 7290948, 10936422, 21872844]

約数ペア:

[(1, 21872844), (2, 10936422), (3, 7290948), (4, 5468211), (6, 3645474), (7, 3124692), (9, 2430316), (12, 1822737), (14, 1562346), (18, 1215158), (21, 1041564), (28, 781173), (29, 754236), (36, 607579), (41, 533484), (42, 520782), (58, 377118), (63, 347188), (73, 299628), (82, 266742), (84, 260391), (87, 251412), (116, 188559), (123, 177828), (126, 173594), (146, 149814), (164, 133371), (174, 125706), (203, 107748), (219, 99876), (246, 88914), (252, 86797), (261, 83804), (287, 76212), (292, 74907), (348, 62853), (369, 59276), (406, 53874), (438, 49938), (492, 44457), (511, 42804), (522, 41902), (574, 38106), (609, 35916), (657, 33292), (738, 29638), (812, 26937), (861, 25404), (876, 24969), (1022, 21402), (1044, 20951), (1148, 19053), (1189, 18396), (1218, 17958), (1314, 16646), (1476, 14819), (1533, 14268), (1722, 12702), (1827, 11972), (2044, 10701), (2117, 10332), (2378, 9198), (2436, 8979), (2583, 8468), (2628, 8323), (2993, 7308), (3066, 7134), (3444, 6351), (3567, 6132), (3654, 5986), (4234, 5166), (4599, 4756)]