20211153

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{521}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 27544896

約数和(自身を除く): 7333743

約数列:

[1, 3, 67, 193, 201, 521, 579, 1563, 12931, 34907, 38793, 100553, 104721, 301659, 6737051, 20211153]

約数ペア:

[(1, 20211153), (3, 6737051), (67, 301659), (193, 104721), (201, 100553), (521, 38793), (579, 34907), (1563, 12931)]