21161930

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6761}}^1$

素因数の和:7081

約数の個数: 16

約数和(自身を含む): 38218824

約数和(自身を除く): 17056894

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6761, 13522, 33805, 67610, 2116193, 4232386, 10580965, 21161930]

約数ペア:

[(1, 21161930), (2, 10580965), (5, 4232386), (10, 2116193), (313, 67610), (626, 33805), (1565, 13522), (3130, 6761)]