16805025

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{3931}}^1$

素因数の和:3966

約数の個数: 36

約数和(自身を含む): 31691920

約数和(自身を除く): 14886895

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 3931, 4275, 11793, 19655, 35379, 58965, 74689, 98275, 176895, 224067, 294825, 373445, 672201, 884475, 1120335, 1867225, 3361005, 5601675, 16805025]

約数ペア:

[(1, 16805025), (3, 5601675), (5, 3361005), (9, 1867225), (15, 1120335), (19, 884475), (25, 672201), (45, 373445), (57, 294825), (75, 224067), (95, 176895), (171, 98275), (225, 74689), (285, 58965), (475, 35379), (855, 19655), (1425, 11793), (3931, 4275)]