21387673

素因数分解:

${\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23353920

約数和(自身を除く): 1966247

約数列:

[1, 19, 53, 67, 317, 1007, 1273, 3551, 6023, 16801, 21239, 67469, 319219, 403541, 1125667, 21387673]

約数ペア:

[(1, 21387673), (19, 1125667), (53, 403541), (67, 319219), (317, 67469), (1007, 21239), (1273, 16801), (3551, 6023)]