21819378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{519509}}^1$

素因数の和:519521

約数の個数: 16

約数和(自身を含む): 49872960

約数和(自身を除く): 28053582

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 519509, 1039018, 1558527, 3117054, 3636563, 7273126, 10909689, 21819378]

約数ペア:

[(1, 21819378), (2, 10909689), (3, 7273126), (6, 3636563), (7, 3117054), (14, 1558527), (21, 1039018), (42, 519509)]