218760981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{659}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 323896320

約数和(自身を除く): 105135339

約数列:

[1, 3, 17, 23, 51, 69, 283, 391, 659, 849, 1173, 1977, 4811, 6509, 11203, 14433, 15157, 19527, 33609, 45471, 110653, 186497, 257669, 331959, 559491, 773007, 3170449, 4289431, 9511347, 12868293, 72920327, 218760981]

約数ペア:

[(1, 218760981), (3, 72920327), (17, 12868293), (23, 9511347), (51, 4289431), (69, 3170449), (283, 773007), (391, 559491), (659, 331959), (849, 257669), (1173, 186497), (1977, 110653), (4811, 45471), (6509, 33609), (11203, 19527), (14433, 15157)]