19989816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:429

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 44637384

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 29, 33, 42, 44, 56, 58, 66, 77, 84, 87, 88, 116, 132, 154, 168, 174, 203, 231, 232, 264, 308, 319, 348, 373, 406, 462, 609, 616, 638, 696, 746, 812, 924, 957, 1119, 1218, 1276, 1492, 1624, 1848, 1914, 2233, 2238, 2436, 2552, 2611, 2984, 3828, 4103, 4466, 4476, 4872, 5222, 6699, 7656, 7833, 8206, 8932, 8952, 10444, 10817, 12309, 13398, 15666, 16412, 17864, 20888, 21634, 24618, 26796, 28721, 31332, 32451, 32824, 43268, 49236, 53592, 57442, 62664, 64902, 75719, 86163, 86536, 98472, 114884, 118987, 129804, 151438, 172326, 227157, 229768, 237974, 259608, 302876, 344652, 356961, 454314, 475948, 605752, 689304, 713922, 832909, 908628, 951896, 1427844, 1665818, 1817256, 2498727, 2855688, 3331636, 4997454, 6663272, 9994908, 19989816]

約数ペア:

[(1, 19989816), (2, 9994908), (3, 6663272), (4, 4997454), (6, 3331636), (7, 2855688), (8, 2498727), (11, 1817256), (12, 1665818), (14, 1427844), (21, 951896), (22, 908628), (24, 832909), (28, 713922), (29, 689304), (33, 605752), (42, 475948), (44, 454314), (56, 356961), (58, 344652), (66, 302876), (77, 259608), (84, 237974), (87, 229768), (88, 227157), (116, 172326), (132, 151438), (154, 129804), (168, 118987), (174, 114884), (203, 98472), (231, 86536), (232, 86163), (264, 75719), (308, 64902), (319, 62664), (348, 57442), (373, 53592), (406, 49236), (462, 43268), (609, 32824), (616, 32451), (638, 31332), (696, 28721), (746, 26796), (812, 24618), (924, 21634), (957, 20888), (1119, 17864), (1218, 16412), (1276, 15666), (1492, 13398), (1624, 12309), (1848, 10817), (1914, 10444), (2233, 8952), (2238, 8932), (2436, 8206), (2552, 7833), (2611, 7656), (2984, 6699), (3828, 5222), (4103, 4872), (4466, 4476)]