21153651

素因数分解:

$3^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 28654080

約数和(自身を除く): 7500429

約数列:

[1, 3, 163, 181, 239, 489, 543, 717, 29503, 38957, 43259, 88509, 116871, 129777, 7051217, 21153651]

約数ペア:

[(1, 21153651), (3, 7051217), (163, 129777), (181, 116871), (239, 88509), (489, 43259), (543, 38957), (717, 29503)]