21310672

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6761}}^1$

素因数の和:6966

約数の個数: 20

約数和(自身を含む): 41505156

約数和(自身を除く): 20194484

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6761, 13522, 27044, 54088, 108176, 1331917, 2663834, 5327668, 10655336, 21310672]

約数ペア:

[(1, 21310672), (2, 10655336), (4, 5327668), (8, 2663834), (16, 1331917), (197, 108176), (394, 54088), (788, 27044), (1576, 13522), (3152, 6761)]