25787313

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{7937}}^1$

素因数の和:7981

約数の個数: 18

約数和(自身を含む): 39316914

約数和(自身を除く): 13529601

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 7937, 23811, 71433, 150803, 452409, 1357227, 2865257, 8595771, 25787313]

約数ペア:

[(1, 25787313), (3, 8595771), (9, 2865257), (19, 1357227), (57, 452409), (171, 150803), (361, 71433), (1083, 23811), (3249, 7937)]