21783681

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47459}}^1$

素因数の和:47485

約数の個数: 16

約数和(自身を含む): 34171200

約数和(自身を除く): 12387519

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47459, 142377, 427131, 806803, 1281393, 2420409, 7261227, 21783681]

約数ペア:

[(1, 21783681), (3, 7261227), (9, 2420409), (17, 1281393), (27, 806803), (51, 427131), (153, 142377), (459, 47459)]