19971039

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{367}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 31159296

約数和(自身を除く): 11188257

約数列:

[1, 3, 11, 17, 33, 51, 97, 187, 291, 367, 561, 1067, 1101, 1649, 3201, 4037, 4947, 6239, 12111, 18139, 18717, 35599, 54417, 68629, 106797, 205887, 391589, 605183, 1174767, 1815549, 6657013, 19971039]

約数ペア:

[(1, 19971039), (3, 6657013), (11, 1815549), (17, 1174767), (33, 605183), (51, 391589), (97, 205887), (187, 106797), (291, 68629), (367, 54417), (561, 35599), (1067, 18717), (1101, 18139), (1649, 12111), (3201, 6239), (4037, 4947)]