21853517

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{809}}^1$

素因数の和:1060

約数の個数: 16

約数和(自身を含む): 26593920

約数和(自身を除く): 4740403

約数列:

[1, 7, 17, 119, 227, 809, 1589, 3859, 5663, 13753, 27013, 96271, 183643, 1285501, 3121931, 21853517]

約数ペア:

[(1, 21853517), (7, 3121931), (17, 1285501), (119, 183643), (227, 96271), (809, 27013), (1589, 13753), (3859, 5663)]