21174307

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3767}}^1$

素因数の和:3858

約数の個数: 16

約数和(自身を含む): 26767872

約数和(自身を除く): 5593565

約数列:

[1, 7, 11, 73, 77, 511, 803, 3767, 5621, 26369, 41437, 274991, 290059, 1924937, 3024901, 21174307]

約数ペア:

[(1, 21174307), (7, 3024901), (11, 1924937), (73, 290059), (77, 274991), (511, 41437), (803, 26369), (3767, 5621)]