18157329

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 26906880

約数和(自身を除く): 8749551

約数列:

[1, 3, 9, 83, 109, 223, 249, 327, 669, 747, 981, 2007, 9047, 18509, 24307, 27141, 55527, 72921, 81423, 166581, 218763, 2017481, 6052443, 18157329]

約数ペア:

[(1, 18157329), (3, 6052443), (9, 2017481), (83, 218763), (109, 166581), (223, 81423), (249, 72921), (327, 55527), (669, 27141), (747, 24307), (981, 18509), (2007, 9047)]