18827432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 23266648

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 463, 598, 782, 884, 926, 1196, 1564, 1768, 1852, 2392, 3128, 3704, 5083, 6019, 7871, 10166, 10649, 12038, 15742, 20332, 21298, 24076, 31484, 40664, 42596, 48152, 62968, 85192, 102323, 138437, 181033, 204646, 276874, 362066, 409292, 553748, 724132, 818584, 1107496, 1448264, 2353429, 4706858, 9413716, 18827432]

約数ペア:

[(1, 18827432), (2, 9413716), (4, 4706858), (8, 2353429), (13, 1448264), (17, 1107496), (23, 818584), (26, 724132), (34, 553748), (46, 409292), (52, 362066), (68, 276874), (92, 204646), (104, 181033), (136, 138437), (184, 102323), (221, 85192), (299, 62968), (391, 48152), (442, 42596), (463, 40664), (598, 31484), (782, 24076), (884, 21298), (926, 20332), (1196, 15742), (1564, 12038), (1768, 10649), (1852, 10166), (2392, 7871), (3128, 6019), (3704, 5083)]