21457152

素因数分解:

$2^8\times 3^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 108

約数和(自身を含む): 63241360

約数和(自身を除く): 41784208

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 67, 72, 96, 128, 134, 139, 144, 192, 201, 256, 268, 278, 288, 384, 402, 417, 536, 556, 576, 603, 768, 804, 834, 1072, 1112, 1152, 1206, 1251, 1608, 1668, 2144, 2224, 2304, 2412, 2502, 3216, 3336, 4288, 4448, 4824, 5004, 6432, 6672, 8576, 8896, 9313, 9648, 10008, 12864, 13344, 17152, 17792, 18626, 19296, 20016, 25728, 26688, 27939, 35584, 37252, 38592, 40032, 51456, 53376, 55878, 74504, 77184, 80064, 83817, 106752, 111756, 149008, 154368, 160128, 167634, 223512, 298016, 320256, 335268, 447024, 596032, 670536, 894048, 1192064, 1341072, 1788096, 2384128, 2682144, 3576192, 5364288, 7152384, 10728576, 21457152]

約数ペア:

[(1, 21457152), (2, 10728576), (3, 7152384), (4, 5364288), (6, 3576192), (8, 2682144), (9, 2384128), (12, 1788096), (16, 1341072), (18, 1192064), (24, 894048), (32, 670536), (36, 596032), (48, 447024), (64, 335268), (67, 320256), (72, 298016), (96, 223512), (128, 167634), (134, 160128), (139, 154368), (144, 149008), (192, 111756), (201, 106752), (256, 83817), (268, 80064), (278, 77184), (288, 74504), (384, 55878), (402, 53376), (417, 51456), (536, 40032), (556, 38592), (576, 37252), (603, 35584), (768, 27939), (804, 26688), (834, 25728), (1072, 20016), (1112, 19296), (1152, 18626), (1206, 17792), (1251, 17152), (1608, 13344), (1668, 12864), (2144, 10008), (2224, 9648), (2304, 9313), (2412, 8896), (2502, 8576), (3216, 6672), (3336, 6432), (4288, 5004), (4448, 4824)]