18920629

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3923}}^1$

素因数の和:3996

約数の個数: 16

約数和(自身を含む): 23732352

約数和(自身を除く): 4811723

約数列:

[1, 7, 13, 53, 91, 371, 689, 3923, 4823, 27461, 50999, 207919, 356993, 1455433, 2702947, 18920629]

約数ペア:

[(1, 18920629), (7, 2702947), (13, 1455433), (53, 356993), (91, 207919), (371, 50999), (689, 27461), (3923, 4823)]