18545553

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 36

約数和(自身を含む): 29547180

約数和(自身を除く): 11001627

約数列:

[1, 3, 9, 13, 39, 89, 117, 137, 169, 267, 411, 507, 801, 1157, 1233, 1521, 1781, 3471, 5343, 10413, 12193, 15041, 16029, 23153, 36579, 45123, 69459, 109737, 135369, 158509, 208377, 475527, 1426581, 2060617, 6181851, 18545553]

約数ペア:

[(1, 18545553), (3, 6181851), (9, 2060617), (13, 1426581), (39, 475527), (89, 208377), (117, 158509), (137, 135369), (169, 109737), (267, 69459), (411, 45123), (507, 36579), (801, 23153), (1157, 16029), (1233, 15041), (1521, 12193), (1781, 10413), (3471, 5343)]