21171168

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 65454480

約数和(自身を除く): 44283312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 53, 57, 72, 73, 76, 96, 106, 114, 144, 146, 152, 159, 171, 212, 219, 228, 288, 292, 304, 318, 342, 424, 438, 456, 477, 584, 608, 636, 657, 684, 848, 876, 912, 954, 1007, 1168, 1272, 1314, 1368, 1387, 1696, 1752, 1824, 1908, 2014, 2336, 2544, 2628, 2736, 2774, 3021, 3504, 3816, 3869, 4028, 4161, 5088, 5256, 5472, 5548, 6042, 7008, 7632, 7738, 8056, 8322, 9063, 10512, 11096, 11607, 12084, 12483, 15264, 15476, 16112, 16644, 18126, 21024, 22192, 23214, 24168, 24966, 30952, 32224, 33288, 34821, 36252, 44384, 46428, 48336, 49932, 61904, 66576, 69642, 72504, 73511, 92856, 96672, 99864, 123808, 133152, 139284, 145008, 147022, 185712, 199728, 220533, 278568, 290016, 294044, 371424, 399456, 441066, 557136, 588088, 661599, 882132, 1114272, 1176176, 1323198, 1764264, 2352352, 2646396, 3528528, 5292792, 7057056, 10585584, 21171168]

約数ペア:

[(1, 21171168), (2, 10585584), (3, 7057056), (4, 5292792), (6, 3528528), (8, 2646396), (9, 2352352), (12, 1764264), (16, 1323198), (18, 1176176), (19, 1114272), (24, 882132), (32, 661599), (36, 588088), (38, 557136), (48, 441066), (53, 399456), (57, 371424), (72, 294044), (73, 290016), (76, 278568), (96, 220533), (106, 199728), (114, 185712), (144, 147022), (146, 145008), (152, 139284), (159, 133152), (171, 123808), (212, 99864), (219, 96672), (228, 92856), (288, 73511), (292, 72504), (304, 69642), (318, 66576), (342, 61904), (424, 49932), (438, 48336), (456, 46428), (477, 44384), (584, 36252), (608, 34821), (636, 33288), (657, 32224), (684, 30952), (848, 24966), (876, 24168), (912, 23214), (954, 22192), (1007, 21024), (1168, 18126), (1272, 16644), (1314, 16112), (1368, 15476), (1387, 15264), (1696, 12483), (1752, 12084), (1824, 11607), (1908, 11096), (2014, 10512), (2336, 9063), (2544, 8322), (2628, 8056), (2736, 7738), (2774, 7632), (3021, 7008), (3504, 6042), (3816, 5548), (3869, 5472), (4028, 5256), (4161, 5088)]