21991672

素因数分解:

$2^3\times {\mathrm{1409}}^1\times {\mathrm{1951}}^1$

素因数の和:3366

約数の個数: 16

約数和(自身を含む): 41284800

約数和(自身を除く): 19293128

約数列:

[1, 2, 4, 8, 1409, 1951, 2818, 3902, 5636, 7804, 11272, 15608, 2748959, 5497918, 10995836, 21991672]

約数ペア:

[(1, 21991672), (2, 10995836), (4, 5497918), (8, 2748959), (1409, 15608), (1951, 11272), (2818, 7804), (3902, 5636)]