21092451

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{727}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 29702400

約数和(自身を除く): 8609949

約数列:

[1, 3, 19, 57, 509, 727, 1527, 2181, 9671, 13813, 29013, 41439, 370043, 1110129, 7030817, 21092451]

約数ペア:

[(1, 21092451), (3, 7030817), (19, 1110129), (57, 370043), (509, 41439), (727, 29013), (1527, 13813), (2181, 9671)]