28807686

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 66306240

約数和(自身を除く): 37498554

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 131, 171, 262, 342, 393, 643, 786, 1179, 1286, 1929, 2358, 2489, 3858, 4978, 5787, 7467, 11574, 12217, 14934, 22401, 24434, 36651, 44802, 73302, 84233, 109953, 168466, 219906, 252699, 505398, 758097, 1516194, 1600427, 3200854, 4801281, 9602562, 14403843, 28807686]

約数ペア:

[(1, 28807686), (2, 14403843), (3, 9602562), (6, 4801281), (9, 3200854), (18, 1600427), (19, 1516194), (38, 758097), (57, 505398), (114, 252699), (131, 219906), (171, 168466), (262, 109953), (342, 84233), (393, 73302), (643, 44802), (786, 36651), (1179, 24434), (1286, 22401), (1929, 14934), (2358, 12217), (2489, 11574), (3858, 7467), (4978, 5787)]