21764757

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{5261}}^1$

素因数の和:5468

約数の個数: 16

約数和(自身を含む): 33340032

約数和(自身を除く): 11575275

約数列:

[1, 3, 7, 21, 197, 591, 1379, 4137, 5261, 15783, 36827, 110481, 1036417, 3109251, 7254919, 21764757]

約数ペア:

[(1, 21764757), (3, 7254919), (7, 3109251), (21, 1036417), (197, 110481), (591, 36827), (1379, 15783), (4137, 5261)]