21039522050

素因数分解:

$2^1\times 5^2\times {\mathrm{4951}}^1\times {\mathrm{84991}}^1$

素因数の和:89954

約数の個数: 24

約数和(自身を含む): 39141875712

約数和(自身を除く): 18102353662

約数列:

[1, 2, 5, 10, 25, 50, 4951, 9902, 24755, 49510, 84991, 123775, 169982, 247550, 424955, 849910, 2124775, 4249550, 420790441, 841580882, 2103952205, 4207904410, 10519761025, 21039522050]

約数ペア:

[(1, 21039522050), (2, 10519761025), (5, 4207904410), (10, 2103952205), (25, 841580882), (50, 420790441), (4951, 4249550), (9902, 2124775), (24755, 849910), (49510, 424955), (84991, 247550), (123775, 169982)]