81731426

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307261}}^1$

素因数の和:307289

約数の個数: 16

約数和(自身を含む): 147485760

約数和(自身を除く): 65754334

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 307261, 614522, 2150827, 4301654, 5837959, 11675918, 40865713, 81731426]

約数ペア:

[(1, 81731426), (2, 40865713), (7, 11675918), (14, 5837959), (19, 4301654), (38, 2150827), (133, 614522), (266, 307261)]