21048405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200461}}^1$

素因数の和:200476

約数の個数: 16

約数和(自身を含む): 38488704

約数和(自身を除く): 17440299

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200461, 601383, 1002305, 1403227, 3006915, 4209681, 7016135, 21048405]

約数ペア:

[(1, 21048405), (3, 7016135), (5, 4209681), (7, 3006915), (15, 1403227), (21, 1002305), (35, 601383), (105, 200461)]