209540947

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1511}}^1\times {\mathrm{1801}}^1$

素因数の和:3330

約数の個数: 16

約数和(自身を含む): 261563904

約数和(自身を除く): 52022957

約数列:

[1, 7, 11, 77, 1511, 1801, 10577, 12607, 16621, 19811, 116347, 138677, 2721311, 19049177, 29934421, 209540947]

約数ペア:

[(1, 209540947), (7, 29934421), (11, 19049177), (77, 2721311), (1511, 138677), (1801, 116347), (10577, 19811), (12607, 16621)]