21589144

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 42071040

約数和(自身を除く): 20481896

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 263, 331, 526, 662, 1052, 1324, 2104, 2648, 8153, 10261, 16306, 20522, 32612, 41044, 65224, 82088, 87053, 174106, 348212, 696424, 2698643, 5397286, 10794572, 21589144]

約数ペア:

[(1, 21589144), (2, 10794572), (4, 5397286), (8, 2698643), (31, 696424), (62, 348212), (124, 174106), (248, 87053), (263, 82088), (331, 65224), (526, 41044), (662, 32612), (1052, 20522), (1324, 16306), (2104, 10261), (2648, 8153)]