21305816

素因数分解:

$2^3\times 7^1\times {\mathrm{380461}}^1$

素因数の和:380474

約数の個数: 16

約数和(自身を含む): 45655440

約数和(自身を除く): 24349624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380461, 760922, 1521844, 2663227, 3043688, 5326454, 10652908, 21305816]

約数ペア:

[(1, 21305816), (2, 10652908), (4, 5326454), (7, 3043688), (8, 2663227), (14, 1521844), (28, 760922), (56, 380461)]