21329324

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14771}}^1$

素因数の和:14813

約数の個数: 18

約数和(自身を含む): 39396924

約数和(自身を除く): 18067600

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14771, 29542, 59084, 280649, 561298, 1122596, 5332331, 10664662, 21329324]

約数ペア:

[(1, 21329324), (2, 10664662), (4, 5332331), (19, 1122596), (38, 561298), (76, 280649), (361, 59084), (722, 29542), (1444, 14771)]