21038877

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 32385600

約数和(自身を除く): 11346723

約数列:

[1, 3, 9, 17, 51, 153, 199, 597, 691, 1791, 2073, 3383, 6219, 10149, 11747, 30447, 35241, 105723, 137509, 412527, 1237581, 2337653, 7012959, 21038877]

約数ペア:

[(1, 21038877), (3, 7012959), (9, 2337653), (17, 1237581), (51, 412527), (153, 137509), (199, 105723), (597, 35241), (691, 30447), (1791, 11747), (2073, 10149), (3383, 6219)]