18493517

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{659}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 22387200

約数和(自身を除く): 3893683

約数列:

[1, 7, 19, 133, 211, 659, 1477, 4009, 4613, 12521, 28063, 87647, 139049, 973343, 2641931, 18493517]

約数ペア:

[(1, 18493517), (7, 2641931), (19, 973343), (133, 139049), (211, 87647), (659, 28063), (1477, 12521), (4009, 4613)]