18910395

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20011}}^1$

素因数の和:20032

約数の個数: 32

約数和(自身を含む): 38423040

約数和(自身を除く): 19512645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20011, 60033, 100055, 140077, 180099, 300165, 420231, 540297, 700385, 900495, 1260693, 2101155, 2701485, 3782079, 6303465, 18910395]

約数ペア:

[(1, 18910395), (3, 6303465), (5, 3782079), (7, 2701485), (9, 2101155), (15, 1260693), (21, 900495), (27, 700385), (35, 540297), (45, 420231), (63, 300165), (105, 180099), (135, 140077), (189, 100055), (315, 60033), (945, 20011)]