81500013

素因数分解:

$3^6\times 7^1\times {\mathrm{15971}}^1$

素因数の和:15996

約数の個数: 28

約数和(自身を含む): 139659168

約数和(自身を除く): 58159155

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 15971, 47913, 111797, 143739, 335391, 431217, 1006173, 1293651, 3018519, 3880953, 9055557, 11642859, 27166671, 81500013]

約数ペア:

[(1, 81500013), (3, 27166671), (7, 11642859), (9, 9055557), (21, 3880953), (27, 3018519), (63, 1293651), (81, 1006173), (189, 431217), (243, 335391), (567, 143739), (729, 111797), (1701, 47913), (5103, 15971)]