18643288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 38567880

約数和(自身を除く): 19924592

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 163, 232, 326, 493, 652, 841, 986, 1304, 1682, 1972, 2771, 3364, 3944, 4727, 5542, 6728, 9454, 11084, 14297, 18908, 22168, 28594, 37816, 57188, 80359, 114376, 137083, 160718, 274166, 321436, 548332, 642872, 1096664, 2330411, 4660822, 9321644, 18643288]

約数ペア:

[(1, 18643288), (2, 9321644), (4, 4660822), (8, 2330411), (17, 1096664), (29, 642872), (34, 548332), (58, 321436), (68, 274166), (116, 160718), (136, 137083), (163, 114376), (232, 80359), (326, 57188), (493, 37816), (652, 28594), (841, 22168), (986, 18908), (1304, 14297), (1682, 11084), (1972, 9454), (2771, 6728), (3364, 5542), (3944, 4727)]