21494792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5197}}^1$

素因数の和:5261

約数の個数: 32

約数和(自身を含む): 44910720

約数和(自身を除く): 23415928

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 5197, 10394, 20788, 41576, 57167, 114334, 228668, 244259, 457336, 488518, 977036, 1954072, 2686849, 5373698, 10747396, 21494792]

約数ペア:

[(1, 21494792), (2, 10747396), (4, 5373698), (8, 2686849), (11, 1954072), (22, 977036), (44, 488518), (47, 457336), (88, 244259), (94, 228668), (188, 114334), (376, 57167), (517, 41576), (1034, 20788), (2068, 10394), (4136, 5197)]