28071981

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8737}}^1$

素因数の和:8770

約数の個数: 32

約数和(自身を含む): 50330880

約数和(自身を除く): 22258899

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 8737, 26211, 61159, 78633, 148529, 183477, 235899, 445587, 550431, 1039703, 1336761, 1651293, 3119109, 4010283, 9357327, 28071981]

約数ペア:

[(1, 28071981), (3, 9357327), (7, 4010283), (9, 3119109), (17, 1651293), (21, 1336761), (27, 1039703), (51, 550431), (63, 445587), (119, 235899), (153, 183477), (189, 148529), (357, 78633), (459, 61159), (1071, 26211), (3213, 8737)]