20983275

素因数分解:

$3^2\times 5^2\times {\mathrm{179}}^1\times {\mathrm{521}}^1$

素因数の和:716

約数の個数: 36

約数和(自身を含む): 37865880

約数和(自身を除く): 16882605

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 179, 225, 521, 537, 895, 1563, 1611, 2605, 2685, 4475, 4689, 7815, 8055, 13025, 13425, 23445, 39075, 40275, 93259, 117225, 279777, 466295, 839331, 1398885, 2331475, 4196655, 6994425, 20983275]

約数ペア:

[(1, 20983275), (3, 6994425), (5, 4196655), (9, 2331475), (15, 1398885), (25, 839331), (45, 466295), (75, 279777), (179, 117225), (225, 93259), (521, 40275), (537, 39075), (895, 23445), (1563, 13425), (1611, 13025), (2605, 8055), (2685, 7815), (4475, 4689)]