19980642

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{3121}}^1$

素因数の和:3234

約数の個数: 32

約数和(自身を含む): 44057664

約数和(自身を除く): 24077022

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 97, 194, 291, 582, 1067, 2134, 3121, 3201, 6242, 6402, 9363, 18726, 34331, 68662, 102993, 205986, 302737, 605474, 908211, 1816422, 3330107, 6660214, 9990321, 19980642]

約数ペア:

[(1, 19980642), (2, 9990321), (3, 6660214), (6, 3330107), (11, 1816422), (22, 908211), (33, 605474), (66, 302737), (97, 205986), (194, 102993), (291, 68662), (582, 34331), (1067, 18726), (2134, 9363), (3121, 6402), (3201, 6242)]