21010419

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2591}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 32752512

約数和(自身を除く): 11742093

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2591, 2703, 7773, 8109, 23319, 44047, 132141, 137323, 396423, 411969, 1235907, 2334491, 7003473, 21010419]

約数ペア:

[(1, 21010419), (3, 7003473), (9, 2334491), (17, 1235907), (51, 411969), (53, 396423), (153, 137323), (159, 132141), (477, 44047), (901, 23319), (2591, 8109), (2703, 7773)]