19955216

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21139}}^1$

素因数の和:21206

約数の個数: 20

約数和(自身を含む): 39320400

約数和(自身を除く): 19365184

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21139, 42278, 84556, 169112, 338224, 1247201, 2494402, 4988804, 9977608, 19955216]

約数ペア:

[(1, 19955216), (2, 9977608), (4, 4988804), (8, 2494402), (16, 1247201), (59, 338224), (118, 169112), (236, 84556), (472, 42278), (944, 21139)]