26857887

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{811}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 43653120

約数和(自身を除く): 16795233

約数列:

[1, 3, 7, 19, 21, 57, 83, 133, 249, 399, 581, 811, 1577, 1743, 2433, 4731, 5677, 11039, 15409, 17031, 33117, 46227, 67313, 107863, 201939, 323589, 471191, 1278947, 1413573, 3836841, 8952629, 26857887]

約数ペア:

[(1, 26857887), (3, 8952629), (7, 3836841), (19, 1413573), (21, 1278947), (57, 471191), (83, 323589), (133, 201939), (249, 107863), (399, 67313), (581, 46227), (811, 33117), (1577, 17031), (1743, 15409), (2433, 11039), (4731, 5677)]