209901813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{42689}}^1$

素因数の和:42852

約数の個数: 16

約数和(自身を含む): 307368000

約数和(自身を除く): 97466187

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4917, 42689, 128067, 469579, 1408737, 6360661, 19081983, 69967271, 209901813]

約数ペア:

[(1, 209901813), (3, 69967271), (11, 19081983), (33, 6360661), (149, 1408737), (447, 469579), (1639, 128067), (4917, 42689)]