19855395

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21011}}^1$

素因数の和:21032

約数の個数: 32

約数和(自身を含む): 40343040

約数和(自身を除く): 20487645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21011, 63033, 105055, 147077, 189099, 315165, 441231, 567297, 735385, 945495, 1323693, 2206155, 2836485, 3971079, 6618465, 19855395]

約数ペア:

[(1, 19855395), (3, 6618465), (5, 3971079), (7, 2836485), (9, 2206155), (15, 1323693), (21, 945495), (27, 735385), (35, 567297), (45, 441231), (63, 315165), (105, 189099), (135, 147077), (189, 105055), (315, 63033), (945, 21011)]