20671431

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{223}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 30782976

約数和(自身を除く): 10111545

約数列:

[1, 3, 11, 33, 53, 159, 223, 583, 669, 1749, 2453, 2809, 7359, 8427, 11819, 30899, 35457, 92697, 130009, 390027, 626407, 1879221, 6890477, 20671431]

約数ペア:

[(1, 20671431), (3, 6890477), (11, 1879221), (33, 626407), (53, 390027), (159, 130009), (223, 92697), (583, 35457), (669, 30899), (1749, 11819), (2453, 8427), (2809, 7359)]