21990736

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{29243}}^1$

素因数の和:29298

約数の個数: 20

約数和(自身を含む): 43515072

約数和(自身を除く): 21524336

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 29243, 58486, 116972, 233944, 467888, 1374421, 2748842, 5497684, 10995368, 21990736]

約数ペア:

[(1, 21990736), (2, 10995368), (4, 5497684), (8, 2748842), (16, 1374421), (47, 467888), (94, 233944), (188, 116972), (376, 58486), (752, 29243)]