21816165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1201}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 40156416

約数和(自身を除く): 18340251

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 173, 519, 865, 1201, 1211, 2595, 3603, 3633, 6005, 6055, 8407, 18015, 18165, 25221, 42035, 126105, 207773, 623319, 1038865, 1454411, 3116595, 4363233, 7272055, 21816165]

約数ペア:

[(1, 21816165), (3, 7272055), (5, 4363233), (7, 3116595), (15, 1454411), (21, 1038865), (35, 623319), (105, 207773), (173, 126105), (519, 42035), (865, 25221), (1201, 18165), (1211, 18015), (2595, 8407), (3603, 6055), (3633, 6005)]