21874155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85781}}^1$

素因数の和:85806

約数の個数: 16

約数和(自身を含む): 37057824

約数和(自身を除く): 15183669

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85781, 257343, 428905, 1286715, 1458277, 4374831, 7291385, 21874155]

約数ペア:

[(1, 21874155), (3, 7291385), (5, 4374831), (15, 1458277), (17, 1286715), (51, 428905), (85, 257343), (255, 85781)]