18869984

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1459

約数の個数: 48

約数和(自身を含む): 43184736

約数和(自身を除く): 24314752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1381, 1708, 1952, 2762, 3416, 5524, 6832, 9667, 11048, 13664, 19334, 22096, 38668, 44192, 77336, 84241, 154672, 168482, 309344, 336964, 589687, 673928, 1179374, 1347856, 2358748, 2695712, 4717496, 9434992, 18869984]

約数ペア:

[(1, 18869984), (2, 9434992), (4, 4717496), (7, 2695712), (8, 2358748), (14, 1347856), (16, 1179374), (28, 673928), (32, 589687), (56, 336964), (61, 309344), (112, 168482), (122, 154672), (224, 84241), (244, 77336), (427, 44192), (488, 38668), (854, 22096), (976, 19334), (1381, 13664), (1708, 11048), (1952, 9667), (2762, 6832), (3416, 5524)]