20149109421

素因数分解:

$3^1\times 7^1\times {\mathrm{1787}}^1\times {\mathrm{536923}}^1$

素因数の和:538720

約数の個数: 16

約数和(自身を含む): 30720643584

約数和(自身を除く): 10571534163

約数列:

[1, 3, 7, 21, 1787, 5361, 12509, 37527, 536923, 1610769, 3758461, 11275383, 959481401, 2878444203, 6716369807, 20149109421]

約数ペア:

[(1, 20149109421), (3, 6716369807), (7, 2878444203), (21, 959481401), (1787, 11275383), (5361, 3758461), (12509, 1610769), (37527, 536923)]