21000966512

素因数分解:

$2^4\times {\mathrm{619}}^1\times {\mathrm{2120453}}^1$

素因数の和:2121080

約数の個数: 20

約数和(自身を含む): 40755125880

約数和(自身を除く): 19754159368

約数列:

[1, 2, 4, 8, 16, 619, 1238, 2476, 4952, 9904, 2120453, 4240906, 8481812, 16963624, 33927248, 1312560407, 2625120814, 5250241628, 10500483256, 21000966512]

約数ペア:

[(1, 21000966512), (2, 10500483256), (4, 5250241628), (8, 2625120814), (16, 1312560407), (619, 33927248), (1238, 16963624), (2476, 8481812), (4952, 4240906), (9904, 2120453)]