200021157

素因数分解:

$3^4\times 7^1\times {\mathrm{352771}}^1$

素因数の和:352790

約数の個数: 20

約数和(自身を含む): 341483296

約数和(自身を除く): 141462139

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 352771, 1058313, 2469397, 3174939, 7408191, 9524817, 22224573, 28574451, 66673719, 200021157]

約数ペア:

[(1, 200021157), (3, 66673719), (7, 28574451), (9, 22224573), (21, 9524817), (27, 7408191), (63, 3174939), (81, 2469397), (189, 1058313), (567, 352771)]