20992340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55243}}^1$

素因数の和:55271

約数の個数: 24

約数和(自身を含む): 46404960

約数和(自身を除く): 25412620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55243, 110486, 220972, 276215, 552430, 1049617, 1104860, 2099234, 4198468, 5248085, 10496170, 20992340]

約数ペア:

[(1, 20992340), (2, 10496170), (4, 5248085), (5, 4198468), (10, 2099234), (19, 1104860), (20, 1049617), (38, 552430), (76, 276215), (95, 220972), (190, 110486), (380, 55243)]