1999193813

素因数分解:

${\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{178643}}^1$

素因数の和:178712

約数の個数: 12

約数和(自身を含む): 2178027648

約数和(自身を除く): 178833835

約数列:

[1, 19, 31, 361, 589, 11191, 178643, 3394217, 5537933, 64490123, 105220727, 1999193813]

約数ペア:

[(1, 1999193813), (19, 105220727), (31, 64490123), (361, 5537933), (589, 3394217), (11191, 178643)]