20393571

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 31385088

約数和(自身を除く): 10991517

約数列:

[1, 3, 11, 23, 33, 69, 97, 253, 277, 291, 759, 831, 1067, 2231, 3047, 3201, 6371, 6693, 9141, 19113, 24541, 26869, 70081, 73623, 80607, 210243, 295559, 617987, 886677, 1853961, 6797857, 20393571]

約数ペア:

[(1, 20393571), (3, 6797857), (11, 1853961), (23, 886677), (33, 617987), (69, 295559), (97, 210243), (253, 80607), (277, 73623), (291, 70081), (759, 26869), (831, 24541), (1067, 19113), (2231, 9141), (3047, 6693), (3201, 6371)]