21294497

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5521}}^1$

素因数の和:5576

約数の個数: 16

約数和(自身を含む): 26505600

約数和(自身を除く): 5211103

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5521, 38647, 104899, 160109, 734293, 1120763, 3042071, 21294497]

約数ペア:

[(1, 21294497), (7, 3042071), (19, 1120763), (29, 734293), (133, 160109), (203, 104899), (551, 38647), (3857, 5521)]