203469021

素因数分解:

$3^2\times 7^2\times {\mathrm{461381}}^1$

素因数の和:461401

約数の個数: 18

約数和(自身を含む): 341884062

約数和(自身を除く): 138415041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 461381, 1384143, 3229667, 4152429, 9689001, 22607669, 29067003, 67823007, 203469021]

約数ペア:

[(1, 203469021), (3, 67823007), (7, 29067003), (9, 22607669), (21, 9689001), (49, 4152429), (63, 3229667), (147, 1384143), (441, 461381)]