21303942

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{3889}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 47053440

約数和(自身を除く): 25749498

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 83, 166, 249, 498, 913, 1826, 2739, 3889, 5478, 7778, 11667, 23334, 42779, 85558, 128337, 256674, 322787, 645574, 968361, 1936722, 3550657, 7101314, 10651971, 21303942]

約数ペア:

[(1, 21303942), (2, 10651971), (3, 7101314), (6, 3550657), (11, 1936722), (22, 968361), (33, 645574), (66, 322787), (83, 256674), (166, 128337), (249, 85558), (498, 42779), (913, 23334), (1826, 11667), (2739, 7778), (3889, 5478)]