19906775

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5987}}^1$

素因数の和:6023

約数の個数: 24

約数和(自身を含む): 29700480

約数和(自身を除く): 9793705

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 5987, 29935, 41909, 113753, 149675, 209545, 568765, 796271, 1047725, 2843825, 3981355, 19906775]

約数ペア:

[(1, 19906775), (5, 3981355), (7, 2843825), (19, 1047725), (25, 796271), (35, 568765), (95, 209545), (133, 149675), (175, 113753), (475, 41909), (665, 29935), (3325, 5987)]