21891573

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{73709}}^1$

素因数の和:73729

約数の個数: 16

約数和(自身を含む): 35380800

約数和(自身を除く): 13489227

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 73709, 221127, 663381, 810799, 1990143, 2432397, 7297191, 21891573]

約数ペア:

[(1, 21891573), (3, 7297191), (9, 2432397), (11, 1990143), (27, 810799), (33, 663381), (99, 221127), (297, 73709)]