21209824

素因数分解:

$2^5\times {\mathrm{487}}^1\times {\mathrm{1361}}^1$

素因数の和:1858

約数の個数: 24

約数和(自身を含む): 41873328

約数和(自身を除く): 20663504

約数列:

[1, 2, 4, 8, 16, 32, 487, 974, 1361, 1948, 2722, 3896, 5444, 7792, 10888, 15584, 21776, 43552, 662807, 1325614, 2651228, 5302456, 10604912, 21209824]

約数ペア:

[(1, 21209824), (2, 10604912), (4, 5302456), (8, 2651228), (16, 1325614), (32, 662807), (487, 43552), (974, 21776), (1361, 15584), (1948, 10888), (2722, 7792), (3896, 5444)]