20961044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{403097}}^1$

素因数の和:403114

約数の個数: 12

約数和(自身を含む): 39503604

約数和(自身を除く): 18542560

約数列:

[1, 2, 4, 13, 26, 52, 403097, 806194, 1612388, 5240261, 10480522, 20961044]

約数ペア:

[(1, 20961044), (2, 10480522), (4, 5240261), (13, 1612388), (26, 806194), (52, 403097)]