21191401

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16189}}^1$

素因数の和:16224

約数の個数: 16

約数和(自身を含む): 27976320

約数和(自身を除く): 6784919

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16189, 113323, 178079, 275213, 1246553, 1926491, 3027343, 21191401]

約数ペア:

[(1, 21191401), (7, 3027343), (11, 1926491), (17, 1246553), (77, 275213), (119, 178079), (187, 113323), (1309, 16189)]