16890545

素因数分解:

$5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 23934528

約数和(自身を除く): 7043983

約数列:

[1, 5, 7, 35, 49, 71, 245, 355, 497, 971, 2485, 3479, 4855, 6797, 17395, 33985, 47579, 68941, 237895, 344705, 482587, 2412935, 3378109, 16890545]

約数ペア:

[(1, 16890545), (5, 3378109), (7, 2412935), (35, 482587), (49, 344705), (71, 237895), (245, 68941), (355, 47579), (497, 33985), (971, 17395), (2485, 6797), (3479, 4855)]