18839944

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 41212800

約数和(自身を除く): 22372856

約数列:

[1, 2, 4, 8, 17, 19, 23, 34, 38, 46, 68, 76, 92, 136, 152, 184, 317, 323, 391, 437, 634, 646, 782, 874, 1268, 1292, 1564, 1748, 2536, 2584, 3128, 3496, 5389, 6023, 7291, 7429, 10778, 12046, 14582, 14858, 21556, 24092, 29164, 29716, 43112, 48184, 58328, 59432, 102391, 123947, 138529, 204782, 247894, 277058, 409564, 495788, 554116, 819128, 991576, 1108232, 2354993, 4709986, 9419972, 18839944]

約数ペア:

[(1, 18839944), (2, 9419972), (4, 4709986), (8, 2354993), (17, 1108232), (19, 991576), (23, 819128), (34, 554116), (38, 495788), (46, 409564), (68, 277058), (76, 247894), (92, 204782), (136, 138529), (152, 123947), (184, 102391), (317, 59432), (323, 58328), (391, 48184), (437, 43112), (634, 29716), (646, 29164), (782, 24092), (874, 21556), (1268, 14858), (1292, 14582), (1564, 12046), (1748, 10778), (2536, 7429), (2584, 7291), (3128, 6023), (3496, 5389)]