21266651

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4322

約数の個数: 16

約数和(自身を含む): 26185728

約数和(自身を除く): 4919077

約数列:

[1, 7, 23, 31, 161, 217, 713, 4261, 4991, 29827, 98003, 132091, 686021, 924637, 3038093, 21266651]

約数ペア:

[(1, 21266651), (7, 3038093), (23, 924637), (31, 686021), (161, 132091), (217, 98003), (713, 29827), (4261, 4991)]