20175321

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 29635200

約数和(自身を除く): 9459879

約数列:

[1, 3, 19, 41, 57, 89, 97, 123, 267, 291, 779, 1691, 1843, 2337, 3649, 3977, 5073, 5529, 8633, 10947, 11931, 25899, 69331, 75563, 164027, 207993, 226689, 353953, 492081, 1061859, 6725107, 20175321]

約数ペア:

[(1, 20175321), (3, 6725107), (19, 1061859), (41, 492081), (57, 353953), (89, 226689), (97, 207993), (123, 164027), (267, 75563), (291, 69331), (779, 25899), (1691, 11931), (1843, 10947), (2337, 8633), (3649, 5529), (3977, 5073)]