21005488507

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53722477}}^1$

素因数の和:53722517

約数の個数: 8

約数和(自身を含む): 23208110496

約数和(自身を除く): 2202621989

約数列:

[1, 17, 23, 391, 53722477, 913282109, 1235616971, 21005488507]

約数ペア:

[(1, 21005488507), (17, 1235616971), (23, 913282109), (391, 53722477)]