21333739

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 25062912

約数和(自身を除く): 3729173

約数列:

[1, 7, 73, 83, 503, 511, 581, 3521, 6059, 36719, 41749, 42413, 257033, 292243, 3047677, 21333739]

約数ペア:

[(1, 21333739), (7, 3047677), (73, 292243), (83, 257033), (503, 42413), (511, 41749), (581, 36719), (3521, 6059)]