21682672

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:721

約数の個数: 40

約数和(自身を含む): 46090800

約数和(自身を除く): 24408128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 349, 353, 698, 706, 1396, 1412, 2792, 2824, 3839, 3883, 5584, 5648, 7678, 7766, 15356, 15532, 30712, 31064, 61424, 62128, 123197, 246394, 492788, 985576, 1355167, 1971152, 2710334, 5420668, 10841336, 21682672]

約数ペア:

[(1, 21682672), (2, 10841336), (4, 5420668), (8, 2710334), (11, 1971152), (16, 1355167), (22, 985576), (44, 492788), (88, 246394), (176, 123197), (349, 62128), (353, 61424), (698, 31064), (706, 30712), (1396, 15532), (1412, 15356), (2792, 7766), (2824, 7678), (3839, 5648), (3883, 5584)]