21000455253

素因数分解:

$3^3\times {\mathrm{5393}}^1\times {\mathrm{144223}}^1$

素因数の和:149625

約数の個数: 16

約数和(自身を含む): 31117770240

約数和(自身を除く): 10117314987

約数列:

[1, 3, 9, 27, 5393, 16179, 48537, 144223, 145611, 432669, 1298007, 3894021, 777794639, 2333383917, 7000151751, 21000455253]

約数ペア:

[(1, 21000455253), (3, 7000151751), (9, 2333383917), (27, 777794639), (5393, 3894021), (16179, 1298007), (48537, 432669), (144223, 145611)]