20003956

素因数分解:

$2^2\times 7^2\times {\mathrm{102061}}^1$

素因数の和:102079

約数の個数: 18

約数和(自身を含む): 40722738

約数和(自身を除く): 20718782

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 102061, 204122, 408244, 714427, 1428854, 2857708, 5000989, 10001978, 20003956]

約数ペア:

[(1, 20003956), (2, 10001978), (4, 5000989), (7, 2857708), (14, 1428854), (28, 714427), (49, 408244), (98, 204122), (196, 102061)]