19211907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2403

約数の個数: 32

約数和(自身を含む): 31691520

約数和(自身を除く): 12479613

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2357, 2717, 7071, 8151, 25927, 30641, 44783, 77781, 91923, 134349, 337051, 492613, 582179, 1011153, 1477839, 1746537, 6403969, 19211907]

約数ペア:

[(1, 19211907), (3, 6403969), (11, 1746537), (13, 1477839), (19, 1011153), (33, 582179), (39, 492613), (57, 337051), (143, 134349), (209, 91923), (247, 77781), (429, 44783), (627, 30641), (741, 25927), (2357, 8151), (2717, 7071)]