51996591

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19991}}^1$

素因数の和:20031

約数の個数: 18

約数和(自身を含む): 79788072

約数和(自身を除く): 27791481

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 19991, 59973, 179919, 339847, 1019541, 3058623, 5777399, 17332197, 51996591]

約数ペア:

[(1, 51996591), (3, 17332197), (9, 5777399), (17, 3058623), (51, 1019541), (153, 339847), (289, 179919), (867, 59973), (2601, 19991)]