31886841

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 49978368

約数和(自身を除く): 18091527

約数列:

[1, 3, 7, 21, 67, 131, 173, 201, 393, 469, 519, 917, 1211, 1407, 2751, 3633, 8777, 11591, 22663, 26331, 34773, 61439, 67989, 81137, 158641, 184317, 243411, 475923, 1518421, 4555263, 10628947, 31886841]

約数ペア:

[(1, 31886841), (3, 10628947), (7, 4555263), (21, 1518421), (67, 475923), (131, 243411), (173, 184317), (201, 158641), (393, 81137), (469, 67989), (519, 61439), (917, 34773), (1211, 26331), (1407, 22663), (2751, 11591), (3633, 8777)]