21263176

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24459704

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 53, 88, 94, 97, 106, 188, 194, 212, 376, 388, 424, 517, 583, 776, 1034, 1067, 1166, 2068, 2134, 2332, 2491, 4136, 4268, 4559, 4664, 4982, 5141, 8536, 9118, 9964, 10282, 18236, 19928, 20564, 27401, 36472, 41128, 50149, 54802, 56551, 100298, 109604, 113102, 200596, 219208, 226204, 241627, 401192, 452408, 483254, 966508, 1933016, 2657897, 5315794, 10631588, 21263176]

約数ペア:

[(1, 21263176), (2, 10631588), (4, 5315794), (8, 2657897), (11, 1933016), (22, 966508), (44, 483254), (47, 452408), (53, 401192), (88, 241627), (94, 226204), (97, 219208), (106, 200596), (188, 113102), (194, 109604), (212, 100298), (376, 56551), (388, 54802), (424, 50149), (517, 41128), (583, 36472), (776, 27401), (1034, 20564), (1067, 19928), (1166, 18236), (2068, 10282), (2134, 9964), (2332, 9118), (2491, 8536), (4136, 5141), (4268, 4982), (4559, 4664)]