81542133

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{21419}}^1$

素因数の和:21478

約数の個数: 20

約数和(自身を含む): 124407360

約数和(自身を除く): 42865227

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 21419, 64257, 192771, 578313, 1006693, 1734939, 3020079, 9060237, 27180711, 81542133]

約数ペア:

[(1, 81542133), (3, 27180711), (9, 9060237), (27, 3020079), (47, 1734939), (81, 1006693), (141, 578313), (423, 192771), (1269, 64257), (3807, 21419)]