81450117

素因数分解:

$3^4\times 7^1\times {\mathrm{143651}}^1$

素因数の和:143670

約数の個数: 20

約数和(自身を含む): 139055136

約数和(自身を除く): 57605019

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 143651, 430953, 1005557, 1292859, 3016671, 3878577, 9050013, 11635731, 27150039, 81450117]

約数ペア:

[(1, 81450117), (3, 27150039), (7, 11635731), (9, 9050013), (21, 3878577), (27, 3016671), (63, 1292859), (81, 1005557), (189, 430953), (567, 143651)]