211717513

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{15761}}^1$

素因数の和:15888

約数の個数: 16

約数和(自身を含む): 257235840

約数和(自身を除く): 45518327

約数列:

[1, 7, 19, 101, 133, 707, 1919, 13433, 15761, 110327, 299459, 1591861, 2096213, 11143027, 30245359, 211717513]

約数ペア:

[(1, 211717513), (7, 30245359), (19, 11143027), (101, 2096213), (133, 1591861), (707, 299459), (1919, 110327), (13433, 15761)]