21091398

素因数分解:

$2^1\times 3^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 22039482

約数列:

[1, 2, 3, 6, 89, 127, 178, 254, 267, 311, 381, 534, 622, 762, 933, 1866, 11303, 22606, 27679, 33909, 39497, 55358, 67818, 78994, 83037, 118491, 166074, 236982, 3515233, 7030466, 10545699, 21091398]

約数ペア:

[(1, 21091398), (2, 10545699), (3, 7030466), (6, 3515233), (89, 236982), (127, 166074), (178, 118491), (254, 83037), (267, 78994), (311, 67818), (381, 55358), (534, 39497), (622, 33909), (762, 27679), (933, 22606), (1866, 11303)]