21883947

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 31770816

約数和(自身を除く): 9886869

約数列:

[1, 3, 17, 43, 51, 129, 289, 587, 731, 867, 1761, 2193, 9979, 12427, 25241, 29937, 37281, 75723, 169643, 429097, 508929, 1287291, 7294649, 21883947]

約数ペア:

[(1, 21883947), (3, 7294649), (17, 1287291), (43, 508929), (51, 429097), (129, 169643), (289, 75723), (587, 37281), (731, 29937), (867, 25241), (1761, 12427), (2193, 9979)]