209531476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{680297}}^1$

素因数の和:680319

約数の個数: 24

約数和(自身を含む): 457160256

約数和(自身を除く): 247628780

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 680297, 1360594, 2721188, 4762079, 7483267, 9524158, 14966534, 19048316, 29933068, 52382869, 104765738, 209531476]

約数ペア:

[(1, 209531476), (2, 104765738), (4, 52382869), (7, 29933068), (11, 19048316), (14, 14966534), (22, 9524158), (28, 7483267), (44, 4762079), (77, 2721188), (154, 1360594), (308, 680297)]