21015238

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{1117}}^1$

素因数の和:1551

約数の個数: 16

約数和(自身を含む): 33003360

約数和(自身を除く): 11988122

約数列:

[1, 2, 23, 46, 409, 818, 1117, 2234, 9407, 18814, 25691, 51382, 456853, 913706, 10507619, 21015238]

約数ペア:

[(1, 21015238), (2, 10507619), (23, 913706), (46, 456853), (409, 51382), (818, 25691), (1117, 18814), (2234, 9407)]