21907554

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{84913}}^1$

素因数の和:84961

約数の個数: 16

約数和(自身を含む): 44834592

約数和(自身を除く): 22927038

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 84913, 169826, 254739, 509478, 3651259, 7302518, 10953777, 21907554]

約数ペア:

[(1, 21907554), (2, 10953777), (3, 7302518), (6, 3651259), (43, 509478), (86, 254739), (129, 169826), (258, 84913)]