21581368

素因数分解:

$2^3\times {\mathrm{457}}^1\times {\mathrm{5903}}^1$

素因数の和:6366

約数の個数: 16

約数和(自身を含む): 40560480

約数和(自身を除く): 18979112

約数列:

[1, 2, 4, 8, 457, 914, 1828, 3656, 5903, 11806, 23612, 47224, 2697671, 5395342, 10790684, 21581368]

約数ペア:

[(1, 21581368), (2, 10790684), (4, 5395342), (8, 2697671), (457, 47224), (914, 23612), (1828, 11806), (3656, 5903)]