21469976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25186024

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 47, 58, 88, 94, 116, 179, 188, 232, 319, 358, 376, 517, 638, 716, 1034, 1276, 1363, 1432, 1969, 2068, 2552, 2726, 3938, 4136, 5191, 5452, 7876, 8413, 10382, 10904, 14993, 15752, 16826, 20764, 29986, 33652, 41528, 57101, 59972, 67304, 92543, 114202, 119944, 185086, 228404, 243977, 370172, 456808, 487954, 740344, 975908, 1951816, 2683747, 5367494, 10734988, 21469976]

約数ペア:

[(1, 21469976), (2, 10734988), (4, 5367494), (8, 2683747), (11, 1951816), (22, 975908), (29, 740344), (44, 487954), (47, 456808), (58, 370172), (88, 243977), (94, 228404), (116, 185086), (179, 119944), (188, 114202), (232, 92543), (319, 67304), (358, 59972), (376, 57101), (517, 41528), (638, 33652), (716, 29986), (1034, 20764), (1276, 16826), (1363, 15752), (1432, 14993), (1969, 10904), (2068, 10382), (2552, 8413), (2726, 7876), (3938, 5452), (4136, 5191)]