20666668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{5659}}^1$

素因数の和:5757

約数の個数: 24

約数和(自身を含む): 39936960

約数和(自身を除く): 19270292

約数列:

[1, 2, 4, 11, 22, 44, 83, 166, 332, 913, 1826, 3652, 5659, 11318, 22636, 62249, 124498, 248996, 469697, 939394, 1878788, 5166667, 10333334, 20666668]

約数ペア:

[(1, 20666668), (2, 10333334), (4, 5166667), (11, 1878788), (22, 939394), (44, 469697), (83, 248996), (166, 124498), (332, 62249), (913, 22636), (1826, 11318), (3652, 5659)]