13640368

素因数分解:

$2^4\times 7^1\times {\mathrm{121789}}^1$

素因数の和:121804

約数の個数: 20

約数和(自身を含む): 30203920

約数和(自身を除く): 16563552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 121789, 243578, 487156, 852523, 974312, 1705046, 1948624, 3410092, 6820184, 13640368]

約数ペア:

[(1, 13640368), (2, 6820184), (4, 3410092), (7, 1948624), (8, 1705046), (14, 974312), (16, 852523), (28, 487156), (56, 243578), (112, 121789)]