21648327

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{8009}}^1$

素因数の和:8082

約数の個数: 16

約数和(自身を含む): 31142880

約数和(自身を除く): 9494553

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 8009, 24027, 136153, 408459, 424477, 1273431, 7216109, 21648327]

約数ペア:

[(1, 21648327), (3, 7216109), (17, 1273431), (51, 424477), (53, 408459), (159, 136153), (901, 24027), (2703, 8009)]