17781321

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 26726400

約数和(自身を除く): 8945079

約数列:

[1, 3, 19, 29, 31, 57, 87, 93, 347, 551, 589, 899, 1041, 1653, 1767, 2697, 6593, 10063, 10757, 17081, 19779, 30189, 32271, 51243, 191197, 204383, 311953, 573591, 613149, 935859, 5927107, 17781321]

約数ペア:

[(1, 17781321), (3, 5927107), (19, 935859), (29, 613149), (31, 573591), (57, 311953), (87, 204383), (93, 191197), (347, 51243), (551, 32271), (589, 30189), (899, 19779), (1041, 17081), (1653, 10757), (1767, 10063), (2697, 6593)]