21160744

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 45581760

約数和(自身を除く): 24421016

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 67, 74, 88, 97, 134, 148, 194, 268, 296, 388, 407, 536, 737, 776, 814, 1067, 1474, 1628, 2134, 2479, 2948, 3256, 3589, 4268, 4958, 5896, 6499, 7178, 8536, 9916, 12998, 14356, 19832, 25996, 27269, 28712, 39479, 51992, 54538, 71489, 78958, 109076, 142978, 157916, 218152, 240463, 285956, 315832, 480926, 571912, 961852, 1923704, 2645093, 5290186, 10580372, 21160744]

約数ペア:

[(1, 21160744), (2, 10580372), (4, 5290186), (8, 2645093), (11, 1923704), (22, 961852), (37, 571912), (44, 480926), (67, 315832), (74, 285956), (88, 240463), (97, 218152), (134, 157916), (148, 142978), (194, 109076), (268, 78958), (296, 71489), (388, 54538), (407, 51992), (536, 39479), (737, 28712), (776, 27269), (814, 25996), (1067, 19832), (1474, 14356), (1628, 12998), (2134, 9916), (2479, 8536), (2948, 7178), (3256, 6499), (3589, 5896), (4268, 4958)]