81426303

素因数分解:

$3^4\times 7^1\times {\mathrm{143609}}^1$

素因数の和:143628

約数の個数: 20

約数和(自身を含む): 139014480

約数和(自身を除く): 57588177

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 143609, 430827, 1005263, 1292481, 3015789, 3877443, 9047367, 11632329, 27142101, 81426303]

約数ペア:

[(1, 81426303), (3, 27142101), (7, 11632329), (9, 9047367), (21, 3877443), (27, 3015789), (63, 1292481), (81, 1005263), (189, 430827), (567, 143609)]