18731504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1499}}^1$

素因数の和:1589

約数の個数: 40

約数和(自身を含む): 40176000

約数和(自身を除く): 21444496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1499, 1562, 2998, 3124, 5996, 6248, 11992, 12496, 16489, 23984, 32978, 65956, 106429, 131912, 212858, 263824, 425716, 851432, 1170719, 1702864, 2341438, 4682876, 9365752, 18731504]

約数ペア:

[(1, 18731504), (2, 9365752), (4, 4682876), (8, 2341438), (11, 1702864), (16, 1170719), (22, 851432), (44, 425716), (71, 263824), (88, 212858), (142, 131912), (176, 106429), (284, 65956), (568, 32978), (781, 23984), (1136, 16489), (1499, 12496), (1562, 11992), (2998, 6248), (3124, 5996)]