21364759

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1390

約数の個数: 16

約数和(自身を含む): 24599680

約数和(自身を除く): 3234921

約数列:

[1, 13, 19, 67, 247, 871, 1273, 1291, 16549, 16783, 24529, 86497, 318877, 1124461, 1643443, 21364759]

約数ペア:

[(1, 21364759), (13, 1643443), (19, 1124461), (67, 318877), (247, 86497), (871, 24529), (1273, 16783), (1291, 16549)]