21000201649

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{582643}}^1$

素因数の和:582940

約数の個数: 16

約数和(自身を含む): 25356666880

約数和(自身を除く): 4356465231

約数列:

[1, 7, 19, 133, 271, 1897, 5149, 36043, 582643, 4078501, 11070217, 77491519, 157896253, 1105273771, 3000028807, 21000201649]

約数ペア:

[(1, 21000201649), (7, 3000028807), (19, 1105273771), (133, 157896253), (271, 77491519), (1897, 11070217), (5149, 4078501), (36043, 582643)]