19975113

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 11071287

約数列:

[1, 3, 9, 27, 29, 87, 97, 261, 263, 291, 783, 789, 873, 2367, 2619, 2813, 7101, 7627, 8439, 22881, 25317, 25511, 68643, 75951, 76533, 205929, 229599, 688797, 739819, 2219457, 6658371, 19975113]

約数ペア:

[(1, 19975113), (3, 6658371), (9, 2219457), (27, 739819), (29, 688797), (87, 229599), (97, 205929), (261, 76533), (263, 75951), (291, 68643), (783, 25511), (789, 25317), (873, 22881), (2367, 8439), (2619, 7627), (2813, 7101)]