20894377

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 25650432

約数和(自身を除く): 4756055

約数列:

[1, 7, 17, 71, 119, 497, 1207, 2473, 8449, 17311, 42041, 175583, 294287, 1229081, 2984911, 20894377]

約数ペア:

[(1, 20894377), (7, 2984911), (17, 1229081), (71, 294287), (119, 175583), (497, 42041), (1207, 17311), (2473, 8449)]