21554517

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4373}}^1$

素因数の和:4460

約数の個数: 16

約数和(自身を含む): 30233088

約数和(自身を除く): 8678571

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4373, 4929, 13119, 135563, 231769, 406689, 695307, 7184839, 21554517]

約数ペア:

[(1, 21554517), (3, 7184839), (31, 695307), (53, 406689), (93, 231769), (159, 135563), (1643, 13119), (4373, 4929)]