19798905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{977}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 36428544

約数和(自身を除く): 16629639

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193, 579, 965, 977, 1351, 2895, 2931, 4053, 4885, 6755, 6839, 14655, 20265, 20517, 34195, 102585, 188561, 565683, 942805, 1319927, 2828415, 3959781, 6599635, 19798905]

約数ペア:

[(1, 19798905), (3, 6599635), (5, 3959781), (7, 2828415), (15, 1319927), (21, 942805), (35, 565683), (105, 188561), (193, 102585), (579, 34195), (965, 20517), (977, 20265), (1351, 14655), (2895, 6839), (2931, 6755), (4053, 4885)]