21306753

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60703}}^1$

素因数の和:60725

約数の個数: 16

約数和(自身を含む): 33994240

約数和(自身を除く): 12687487

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60703, 182109, 546327, 789139, 1638981, 2367417, 7102251, 21306753]

約数ペア:

[(1, 21306753), (3, 7102251), (9, 2367417), (13, 1638981), (27, 789139), (39, 546327), (117, 182109), (351, 60703)]