20646075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16193}}^1$

素因数の和:16223

約数の個数: 24

約数和(自身を含む): 36145008

約数和(自身を除く): 15498933

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16193, 48579, 80965, 242895, 275281, 404825, 825843, 1214475, 1376405, 4129215, 6882025, 20646075]

約数ペア:

[(1, 20646075), (3, 6882025), (5, 4129215), (15, 1376405), (17, 1214475), (25, 825843), (51, 404825), (75, 275281), (85, 242895), (255, 80965), (425, 48579), (1275, 16193)]