21088784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69371}}^1$

素因数の和:69398

約数の個数: 20

約数和(自身を含む): 43010640

約数和(自身を除く): 21921856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69371, 138742, 277484, 554968, 1109936, 1318049, 2636098, 5272196, 10544392, 21088784]

約数ペア:

[(1, 21088784), (2, 10544392), (4, 5272196), (8, 2636098), (16, 1318049), (19, 1109936), (38, 554968), (76, 277484), (152, 138742), (304, 69371)]