21008480

素因数分解:

$2^5\times 5^1\times {\mathrm{131303}}^1$

素因数の和:131318

約数の個数: 24

約数和(自身を含む): 49632912

約数和(自身を除く): 28624432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131303, 262606, 525212, 656515, 1050424, 1313030, 2100848, 2626060, 4201696, 5252120, 10504240, 21008480]

約数ペア:

[(1, 21008480), (2, 10504240), (4, 5252120), (5, 4201696), (8, 2626060), (10, 2100848), (16, 1313030), (20, 1050424), (32, 656515), (40, 525212), (80, 262606), (160, 131303)]