21009764

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9929}}^1$

素因数の和:9979

約数の個数: 18

約数和(自身を含む): 38439030

約数和(自身を除く): 17429266

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9929, 19858, 39716, 228367, 456734, 913468, 5252441, 10504882, 21009764]

約数ペア:

[(1, 21009764), (2, 10504882), (4, 5252441), (23, 913468), (46, 456734), (92, 228367), (529, 39716), (1058, 19858), (2116, 9929)]