20551426

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77261}}^1$

素因数の和:77289

約数の個数: 16

約数和(自身を含む): 37085760

約数和(自身を除く): 16534334

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77261, 154522, 540827, 1081654, 1467959, 2935918, 10275713, 20551426]

約数ペア:

[(1, 20551426), (2, 10275713), (7, 2935918), (14, 1467959), (19, 1081654), (38, 540827), (133, 154522), (266, 77261)]