28407071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19417}}^1$

素因数の和:19454

約数の個数: 16

約数和(自身を含む): 37282560

約数和(自身を除く): 8875489

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19417, 135919, 213587, 368923, 1495109, 2582461, 4058153, 28407071]

約数ペア:

[(1, 28407071), (7, 4058153), (11, 2582461), (19, 1495109), (77, 368923), (133, 213587), (209, 135919), (1463, 19417)]