21340208

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{5981}}^1$

素因数の和:6212

約数の個数: 20

約数和(自身を含む): 41539008

約数和(自身を除く): 20198800

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 5981, 11962, 23924, 47848, 95696, 1333763, 2667526, 5335052, 10670104, 21340208]

約数ペア:

[(1, 21340208), (2, 10670104), (4, 5335052), (8, 2667526), (16, 1333763), (223, 95696), (446, 47848), (892, 23924), (1784, 11962), (3568, 5981)]