20172915

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21347}}^1$

素因数の和:21368

約数の個数: 32

約数和(自身を含む): 40988160

約数和(自身を除く): 20815245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21347, 64041, 106735, 149429, 192123, 320205, 448287, 576369, 747145, 960615, 1344861, 2241435, 2881845, 4034583, 6724305, 20172915]

約数ペア:

[(1, 20172915), (3, 6724305), (5, 4034583), (7, 2881845), (9, 2241435), (15, 1344861), (21, 960615), (27, 747145), (35, 576369), (45, 448287), (63, 320205), (105, 192123), (135, 149429), (189, 106735), (315, 64041), (945, 21347)]