21000337372

素因数分解:

$2^2\times 7^1\times {\mathrm{750012049}}^1$

素因数の和:750012060

約数の個数: 12

約数和(自身を含む): 42000674800

約数和(自身を除く): 21000337428

約数列:

[1, 2, 4, 7, 14, 28, 750012049, 1500024098, 3000048196, 5250084343, 10500168686, 21000337372]

約数ペア:

[(1, 21000337372), (2, 10500168686), (4, 5250084343), (7, 3000048196), (14, 1500024098), (28, 750012049)]