16953909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42491}}^1$

素因数の和:42520

約数の個数: 16

約数和(自身を含む): 27194880

約数和(自身を除く): 10240971

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 42491, 127473, 297437, 807329, 892311, 2421987, 5651303, 16953909]

約数ペア:

[(1, 16953909), (3, 5651303), (7, 2421987), (19, 892311), (21, 807329), (57, 297437), (133, 127473), (399, 42491)]