397171292

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{22129}}^1$

素因数の和:22781

約数の個数: 24

約数和(自身を含む): 795617760

約数和(自身を除く): 398446468

約数列:

[1, 2, 4, 7, 14, 28, 641, 1282, 2564, 4487, 8974, 17948, 22129, 44258, 88516, 154903, 309806, 619612, 14184689, 28369378, 56738756, 99292823, 198585646, 397171292]

約数ペア:

[(1, 397171292), (2, 198585646), (4, 99292823), (7, 56738756), (14, 28369378), (28, 14184689), (641, 619612), (1282, 309806), (2564, 154903), (4487, 88516), (8974, 44258), (17948, 22129)]