21682144

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2039

約数の個数: 48

約数和(自身を含む): 48093696

約数和(自身を除く): 26411552

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1987, 2728, 3974, 5456, 7948, 10912, 15896, 21857, 31792, 43714, 61597, 63584, 87428, 123194, 174856, 246388, 349712, 492776, 677567, 699424, 985552, 1355134, 1971104, 2710268, 5420536, 10841072, 21682144]

約数ペア:

[(1, 21682144), (2, 10841072), (4, 5420536), (8, 2710268), (11, 1971104), (16, 1355134), (22, 985552), (31, 699424), (32, 677567), (44, 492776), (62, 349712), (88, 246388), (124, 174856), (176, 123194), (248, 87428), (341, 63584), (352, 61597), (496, 43714), (682, 31792), (992, 21857), (1364, 15896), (1987, 10912), (2728, 7948), (3974, 5456)]