21663486

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2153}}^1$

素因数の和:2217

約数の個数: 48

約数和(自身を含む): 51747696

約数和(自身を除く): 30084210

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 2153, 3354, 4306, 5031, 6459, 10062, 12918, 19377, 27989, 38754, 55978, 83967, 92579, 167934, 185158, 251901, 277737, 503802, 555474, 833211, 1203527, 1666422, 2407054, 3610581, 7221162, 10831743, 21663486]

約数ペア:

[(1, 21663486), (2, 10831743), (3, 7221162), (6, 3610581), (9, 2407054), (13, 1666422), (18, 1203527), (26, 833211), (39, 555474), (43, 503802), (78, 277737), (86, 251901), (117, 185158), (129, 167934), (234, 92579), (258, 83967), (387, 55978), (559, 38754), (774, 27989), (1118, 19377), (1677, 12918), (2153, 10062), (3354, 6459), (4306, 5031)]