21881426

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{82261}}^1$

素因数の和:82289

約数の個数: 16

約数和(自身を含む): 39485760

約数和(自身を除く): 17604334

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 82261, 164522, 575827, 1151654, 1562959, 3125918, 10940713, 21881426]

約数ペア:

[(1, 21881426), (2, 10940713), (7, 3125918), (14, 1562959), (19, 1151654), (38, 575827), (133, 164522), (266, 82261)]