21963128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 25453192

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 83, 88, 97, 124, 166, 194, 248, 332, 341, 388, 664, 682, 776, 913, 1067, 1364, 1826, 2134, 2573, 2728, 3007, 3652, 4268, 5146, 6014, 7304, 8051, 8536, 10292, 12028, 16102, 20584, 24056, 28303, 32204, 33077, 56606, 64408, 66154, 88561, 113212, 132308, 177122, 226424, 249581, 264616, 354244, 499162, 708488, 998324, 1996648, 2745391, 5490782, 10981564, 21963128]

約数ペア:

[(1, 21963128), (2, 10981564), (4, 5490782), (8, 2745391), (11, 1996648), (22, 998324), (31, 708488), (44, 499162), (62, 354244), (83, 264616), (88, 249581), (97, 226424), (124, 177122), (166, 132308), (194, 113212), (248, 88561), (332, 66154), (341, 64408), (388, 56606), (664, 33077), (682, 32204), (776, 28303), (913, 24056), (1067, 20584), (1364, 16102), (1826, 12028), (2134, 10292), (2573, 8536), (2728, 8051), (3007, 7304), (3652, 6014), (4268, 5146)]