207908921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 229920768

約数和(自身を除く): 22011847

約数列:

[1, 11, 131, 223, 647, 1441, 2453, 7117, 29213, 84757, 144281, 321343, 932327, 1587091, 18900811, 207908921]

約数ペア:

[(1, 207908921), (11, 18900811), (131, 1587091), (223, 932327), (647, 321343), (1441, 144281), (2453, 84757), (7117, 29213)]