18543644

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20828836

約数列:

[1, 2, 4, 7, 14, 28, 29, 41, 58, 82, 116, 164, 203, 287, 406, 557, 574, 812, 1114, 1148, 1189, 2228, 2378, 3899, 4756, 7798, 8323, 15596, 16153, 16646, 22837, 32306, 33292, 45674, 64612, 91348, 113071, 159859, 226142, 319718, 452284, 639436, 662273, 1324546, 2649092, 4635911, 9271822, 18543644]

約数ペア:

[(1, 18543644), (2, 9271822), (4, 4635911), (7, 2649092), (14, 1324546), (28, 662273), (29, 639436), (41, 452284), (58, 319718), (82, 226142), (116, 159859), (164, 113071), (203, 91348), (287, 64612), (406, 45674), (557, 33292), (574, 32306), (812, 22837), (1114, 16646), (1148, 16153), (1189, 15596), (2228, 8323), (2378, 7798), (3899, 4756)]