21492724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 44190720

約数和(自身を除く): 22697996

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 47, 76, 94, 188, 209, 418, 517, 547, 836, 893, 1034, 1094, 1786, 2068, 2188, 3572, 6017, 9823, 10393, 12034, 19646, 20786, 24068, 25709, 39292, 41572, 51418, 102836, 114323, 228646, 282799, 457292, 488471, 565598, 976942, 1131196, 1953884, 5373181, 10746362, 21492724]

約数ペア:

[(1, 21492724), (2, 10746362), (4, 5373181), (11, 1953884), (19, 1131196), (22, 976942), (38, 565598), (44, 488471), (47, 457292), (76, 282799), (94, 228646), (188, 114323), (209, 102836), (418, 51418), (517, 41572), (547, 39292), (836, 25709), (893, 24068), (1034, 20786), (1094, 19646), (1786, 12034), (2068, 10393), (2188, 9823), (3572, 6017)]