21288014

素因数分解:

$2^1\times {\mathrm{11}}^4\times {\mathrm{727}}^1$

素因数の和:773

約数の個数: 20

約数和(自身を含む): 35173320

約数和(自身を除く): 13885306

約数列:

[1, 2, 11, 22, 121, 242, 727, 1331, 1454, 2662, 7997, 14641, 15994, 29282, 87967, 175934, 967637, 1935274, 10644007, 21288014]

約数ペア:

[(1, 21288014), (2, 10644007), (11, 1935274), (22, 967637), (121, 175934), (242, 87967), (727, 29282), (1331, 15994), (1454, 14641), (2662, 7997)]